https://code-reference.com/ 2026-04-25T20:21:51+02:00 https://code-reference.com/ https://code-reference.com/ttps://code-reference.com/lib/tpl/dokuwiki/images/favicon.ico text/html 2024-02-16T01:04:16+02:00 https://code-reference.com/arduino/constants/progmem?rev=1708041856&do=diff Store data in flash (program) memory instead of SRAM. There's a description of the various types of memory available on an Arduino board. The PROGMEM keyword is a variable modifier, it should be used only with the datatypes defined in pgmspace.h. It tells the compiler “put this information into flash memory”, instead of into SRAM, where it would normally go. text/html 2024-02-16T00:48:23+02:00 https://code-reference.com/c/string.h?rev=1708040903&do=diff string.h Overview Name Description memchr memchr memcmp memcmp memcpy memcpy memmove memmove memset memset strcat strcat strchr strchr strcmp strcmp strcoll strcoll strcpy strcpy strcspn strcspn strerror strerror strlen strlen strncat strncat strncmp strncmp strncpy strncpy strpbrk strpbrk strrchr strrchr strspn strspn strstr strstr strtok strtok strxfrm strxfrm automatically generated overview ... Change this page if you have a better descrip… text/html 2024-02-16T01:04:12+02:00 https://code-reference.com/arduino/data_types/string?rev=1708041852&do=diff Description Text strings can be represented in two ways. you can use the String data type, which is part of the core as of version 0019, or you can make a string out of an array of type char and null-terminate it. This page described the latter method. For more details on the String object, which gives you more functionality at the cost of more memory, see the String object page. text/html 2013-04-15T09:30:44+02:00 https://code-reference.com/java/io/printstream/format?rev=1366011044&do=diff format args to the format string format and write the result to the stream format(String format, Object... args); return value: stream sign Description 0 if the place is not busy they prints a 0 # if the place is not busy they prints nothing . decimal separator Separates and decimal places. , Groups the numbers (a group is as large as the distance from ”,” to ”.”). ; Delimiter. To the left of the pattern is positive, the right for negative numbers. - The default character for the negative… text/html 2024-02-16T01:03:57+02:00 https://code-reference.com/assembly/8086_88/command_overview?rev=1708041837&do=diff Assembly Language 8086/88 Overview CommandDescriptionExampleAAAASCII adjust after additionno example yetAADASCII adjust before divideno example yetAAMASCII adjust alter multiplyno example yetAASASCII adjust after subtractno example yetADCAdd with carryno example yetADDAddno example yetANDAndno example yetCALLCallno example yetCBWConvert byte to wordno example yetCLCClear carry flagno example yetCLDClear direction flagno example yetCLIClear interrupt flagno example yetCMCComplement carry flagno … text/html 2013-02-28T01:21:08+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_escape_string?rev=1362010868&do=diff unsigned long mysql_escape_string(MYSQL *mysql, char *to, const char *from, unsigned long length) description of mysql_escape_string mysql_escape_string escape a mysql string ” will be escaped ; will not be escaped ! mysql_escape_string is outdated use mysql_real_escape_string instead ! text/html 2018-08-03T18:52:05+02:00 https://code-reference.com/bash/how_to/string_substitutions?rev=1533315125&do=diff bash: "How To" ... utilize string substitutions string parameter substitution operationwhatcodeexample using: export TST='abcabcaa'result from (abcabcaa)removefirst occurrence of substring 'xyz' in stringSTR=${STR/'xyz'}echo ${TST/'bc'}aabcaa (abcabcaa)substring 'xyz' everywhere in stringSTR=${STR//'xyz'}echo ${TST//'bc'}aaaa (abcabcaa)substring 'xyz' at very beginning of string (prefix)STR=${STR#'xyz'}echo ${TST#'abca'}bcaa (abcabcaa)substring 'xyz' at very end of string (suffix)STR=${STR… text/html 2024-02-16T00:48:24+02:00 https://code-reference.com/c/stdlib.h?rev=1708040904&do=diff Numeric conversions Function Description atof converts a string to a floating-point value atoi converts a string to a integer value atol converts a string to a long integer value strtod converts a string to a double value strtol converts a string to a long integer value strtoul converts a string to a unsigned integer value Mathematical functions Function Description abs c… text/html 2024-02-16T01:06:14+02:00 https://code-reference.com/c/string.h/strcoll?rev=1708041974&do=diff int strcoll(const char *str1, const char *str2); strcoll compares 2 strings C Sourcecode Example /* * strcoll c example code * http://code-reference.com/c/string.h/strcoll */ #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <string.h> int main( void ) { char string[] = "am i the same"; char string2[] = "i whant to be the same"; char string3[] = "am i the same"; if( strcoll(string,string2) != 0 ) printf( "%s… text/html 2024-02-16T01:04:00+02:00 https://code-reference.com/java/io/printwriter?rev=1708041840&do=diff ---------- The PrintWriter class is a simple way of writing to files in Java io. It can be used in many ways and offers a great deal of methods inside the class. Some of these are quite common methods throughout the language itself. I will go through them step by step, giving examples for each. Let's get started: text/html 2013-02-23T18:10:45+02:00 https://code-reference.com/c/string.h/strtok?rev=1361639445&do=diff #include <stdlib.h> char *strtok(char *str1, const char *str2); description of strtok Function strtok breaks a string (str1) into individual strings based on the so-called token. The string is separated by one delimiter (str2). “str2” may contain multiple tokens, e.g. str2 = “\ n” (ie separation in space, comma, New Line, Point). text/html 2013-02-27T22:35:20+02:00 https://code-reference.com/c/mysql/mysql.h?rev=1362000920&do=diff mysql Overview Name Description mysql_affected_rows mysql_affected_rows mysql_autocommit mysql_autocommit mysql_change_user mysql_change_user mysql_character_set_name mysql_character_set_name mysql_close mysql_close mysql_commit mysql_commit mysql_connect mysql_connect mysql_create_db mysql_create_db mysql_data_seek mysql_data_seek mysql_debug mysql_debug mysql_drop_db mysql_drop_db mysql_dump_debug_info mysql_dump_debug_info mysql_eof mysql_eof mysql_e… text/html 2013-02-25T15:56:52+02:00 https://code-reference.com/c/stdio.h/snprintf?rev=1361804212&do=diff #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ int snprintf(char *restrict s, size_t n, const char *restrict format, ...); description of snprintf The function snprintf() format the format specified by arguments of the printf format specification and writes the result to the specified string by dest. size specifies the maximum length of the string at least. The string in least receive in any case a terminating NULL character. In no… text/html 2013-02-03T21:15:10+02:00 https://code-reference.com/c/conio.h/cscanf?rev=1359922510&do=diff int cscanf(char *format[, address, ...]); description of cscanf reads input from the console and reformat it. cscanf reads directly from the console of a series of input fields one character at. Then each field is formatted according to the format specifier is passed cscanf in the format designated by the pointer format string. Finally stores cscanf formatted input to the direction indicated by the argument address memory address and shows the input on the screen. There must be as many … text/html 2024-02-16T01:04:52+02:00 https://code-reference.com/c/stdlib.h/strtod?rev=1708041892&do=diff strtod #include <stdlib.h> double strtod(const char *str, char **endptr); strtod converts a string into a double variable strtod c code example /* * strtod example code * http://code-reference.com/c/stdlib.h/strtod */ #include <stdio.h> #include <stdlib.h> int main ( void ) { char string[] ="2040 strtod string 5"; char *endptr; double number; number = strtod(string, &endptr); printf("String is %s\n",string); printf("Double is %f\n", number); return 0; } text/html 2013-02-17T01:47:43+02:00 https://code-reference.com/c/string.h/strrchr?rev=1361062063&do=diff strrchr #include <stdlib.h> char *strrchr(const char *str, int c); description of strrchr strrchr () is a string function that finds the last occurrence of a character in a string. As a result, the pointer comes to this character or the null pointer if this character is not found. text/html 2024-02-16T01:04:12+02:00 https://code-reference.com/arduino/data_types/stringobject?rev=1708041852&do=diff Description The String class, part of the core as of version 0019, allows you to use and manipulate strings of text in more complex ways than character arrays do. You can concatenate Strings, append to them, search for and replace substrings, and more. It takes more memory than a simple character array, but it is also more useful. text/html 2024-02-16T01:04:51+02:00 https://code-reference.com/c/stdlib.h/atol?rev=1708041891&do=diff #include <stdlib.h> long int atol(const char *str); convert a string to long integer C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <stdlib.h> int main(void){ char string[]="1234"; long int i; printf("string = %s \n", string ); printf("int = %li \n", atol(string) ); i = atol(string); i = i + i; printf("i + i = %li\n", i); return 0; } text/html 2024-02-16T01:04:51+02:00 https://code-reference.com/c/stdlib.h/atoi?rev=1708041891&do=diff #include <stdlib.h> int atoi(const char *str); convert a string to integer C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <stdlib.h> int main(void){ char string[]="1234"; int i; printf("string = %s \n", string ); printf("int = %i \n", atoi(string) ); i = atoi(string); i = i + i; printf("i + i = %i\n", i); return 0; } text/html 2024-02-16T01:05:41+02:00 https://code-reference.com/c/stdio.h/gets?rev=1708041941&do=diff gets char *gets(char *str); Copies characters from stdin into str until newline encountered, end-of-file reached, or error occurs. Does not copy newline. NUL-terminates s. Returns str, or NULL on end-of-file or error. Should not be used because of the potential for buffer overflow. text/html 2024-02-16T01:04:49+02:00 https://code-reference.com/c/stdlib.h/strtol?rev=1708041889&do=diff #include <stdlib.h> long int strtol(const char *str, char **endptr, int base); strtol Converting a string to an long integer str: the string to be converted endptr: address of a pointer variable that points to the last character read, so the character that is not owned by a number base: base between 2 and 36 Be found unprefixed numbers, these numbers in base 10 are accepted. If the base '0 'is specified, the strings make a reference to the basis used (leading “0x” for hexadecimal, … text/html 2024-02-16T01:04:48+02:00 https://code-reference.com/c/stdlib.h/atof?rev=1708041888&do=diff atof #include <stdlib.h> double atof(const char *str); Description The atof() function converts the initial portion of the string pointed to by nptr to double. The behavior is the same as strtod(nptr, (char **) NULL); except that atof() does not detect errors. text/html 2024-02-16T01:05:42+02:00 https://code-reference.com/c/stdio.h/fscanf?rev=1708041942&do=diff fscanf int fscanf(FILE *stream, const char *format, ...); Performs formatted input conversion, reading from stream stream according to format format. The function returns when format is fully processed. Returns number of items converted and assigned, or EOF if end-of-file or error occurs before any conversion. Each of the arguments following format must be a pointer. Format string may contain: text/html 2024-02-16T01:06:14+02:00 https://code-reference.com/c/string.h/memchr?rev=1708041974&do=diff void *memchr(const void *str, int c, size_t n); memchr finds the firs occurrence of a character and return a pointer to it. #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <string.h> int main( void ) { char string[] = "Find the firs occurrence of a character and count it !"; if( memchr(string,'o',strlen(string)) == NULL ) { printf( "Cant find o character\n" ); } else { printf( "found character o at po… text/html 2024-02-16T01:04:51+02:00 https://code-reference.com/c/stdlib.h/wctomb?rev=1708041891&do=diff wctomb #include <stdlib.h> int wctomb(char *str, wchar_t wchar); Description wctomb converts a wide character to a multibyte character in the string. wctomb maximum MB_CUR_MAX sign stores in a string. The behavior of wctomb is affected by the LC_CTYPE category of the current locale text/html 2024-02-16T01:04:51+02:00 https://code-reference.com/c/stdlib.h/strtoul?rev=1708041891&do=diff strtoul #include <stdlib.h> unsigned long int strtoul(const char *str, char **endptr, int base); strtoul Converting a string to an unsigned long integer str: the string to be converted endptr: address of a pointer variable that points to the last character read, so the character that is not owned by a number base: base between 2 and 36 Be found unprefixed numbers, these numbers in base 10 are accepted. If the base '0 'is specified, the strings make a reference to the basis use… text/html 2024-02-16T01:06:15+02:00 https://code-reference.com/c/string.h/strcspn?rev=1708041975&do=diff #include <string.h> //#include <windows.h> /* uncomment this for Windows */ size_t strcspn(const char *str1, const char *str2); Description strcspn find the first occurrence of any character in str2 strcspn C Example Code /* * strcspn c example code * http://code-reference.com/c/string.h/strcspn */ #include <stdio.h> #include <string.h> #include <stdlib.h> /* for strlen */ int main ( void ) { char string[] = "te=st@code-reference.com"; char search_keys[] = "?! ,$%:;&/()="; … text/html 2015-01-10T19:10:59+02:00 https://code-reference.com/c/string.h/strchr?rev=1420913459&do=diff char *strchr(const char *str, int c); strchr finds the first occurrence of a character and return a pointer to it. C Sourcecode Example /* * strchr c example code * http://code-reference.com/c/string.h/strchr */ #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <string.h> int main( void ) { char *ptr; char string[] = "Find the first occurrence of a character and count it !"; if( strchr(string,'o') == NULL ) printf(… text/html 2024-02-16T01:04:48+02:00 https://code-reference.com/c/stdlib.h/wcstombs?rev=1708041888&do=diff wcstombs #include <stdlib.h> size_t wcstombs(char *str, const wchar_t *pwcs, size_t n); Description wcstombs converts a wide character string into a multibyte character string. conversion stops after the size n is reached. The behavior of wcstombs is affected by the LC_CTYPE category of the current locale text/html 2024-02-16T01:05:41+02:00 https://code-reference.com/c/stdio.h/fprintf?rev=1708041941&do=diff int fprintf(FILE *stream, const char *format, ...); Converts (according to format format) and writes output to stream stream. Number of characters written, or negative value on error, is returned. optional flag: - left adjust + always sign 0 zero pad # Alternate form: for conversion character o, first digit will be zero, for [xX], prefix 0x or 0X to non-zero value, for [eEfgG], always decimal point, for [gG] trailing zeros not removed. optional minimum width: if specified as *… text/html 2024-02-16T01:05:34+02:00 https://code-reference.com/c/wchar.h/fgetws?rev=1708041934&do=diff fgetws #include <wchar.h> wchar_t *fgetws(wchar_t *restrict, int, FILE *stream); Description fgetws reads wide characters into “*restrict” from “stream” fgetws will also stop reading if it encounters a newline character. In which case, the newline character will put into the string as long as the number of characters does not exceed “length - 1”. The function will also stop reading if it reaches the end of the stream. If an error or EOF occurs, the function returns NULL inste… text/html 2013-02-03T21:21:05+02:00 https://code-reference.com/c/conio.h/cgets?rev=1359922865&do=diff char *cgets(char *str); description of cgets Reads a string from the console. cgets reads a string of characters from the console and stores the string (and the string length) in the location pointed to by str. cgets reads as long as a sign to mark the combination carriage return / line feed (CR / LF) occurs or the maximum number of characters has been read. When reading cgets the CR / LF combination is replaced by the combination of characters \ 0 (null terminator) before the string is… text/html 2024-02-16T01:06:15+02:00 https://code-reference.com/c/string.h/memset?rev=1708041975&do=diff memset #include <stdlib.h> void *memset(void *str, int c, size_t n); memset Fill / overwrite memory region with certain characters str = Target memory block /c string c = value byte that is used to overwrite n = number of chars to be copied text/html 2013-02-17T03:02:49+02:00 https://code-reference.com/c/string.h/strxfrm?rev=1361066569&do=diff #include <stdlib.h> size_t strxfrm(char *str1, const char *str2, size_t n); description of strxfrm The function strxfrm () transforms a null-terminated C string according to local settings. Thus the string can be safely compared using strcmp () with another. The transformed string is stored in a new string. text/html 2024-02-16T01:06:15+02:00 https://code-reference.com/c/string.h/memcmp?rev=1708041975&do=diff int memcmp(const void *str1, const void *str2, size_t n); check the size of a string and string2 and return a value less 0 string1 lesser than string2 equal 0 string1 equal string2 greater 0 string1 greater than string2 #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <string.h> #define MAX 42 int main ( void ) { char string1[MAX]="Teststring"; char string2[MAX]="test"; int i; i = memcmp ( string1, string2,… text/html 2014-04-05T05:04:09+02:00 https://code-reference.com/c/string.h/strcpy?rev=1396667049&do=diff #include <string.h> char *strcpy(char *str1, const char *str2); Description strcpy copy a c string pointed by str2 into the array pointed by str1 including the terminating null character. strcpy C Example Code /* * strcpy c example code * http://code-reference.com/c/string.h/strcpy */ #include <stdio.h> /* including standard library */ #include <string.h> int main( void ) { char string[] = "copy me"; /* the size of the array is calculated automatically */ char string2[20]; … text/html 2024-02-16T01:12:05+02:00 https://code-reference.com/java/lang/string/replace?rev=1708042325&do=diff public String replace(CharSequence target, CharSequence replacement) description of replace this method is used to replace a char Sequence example of replace in java package replace; public class ReplaceString { public static void main(String[] args) { String str = "Hello"; str = str.replace("el", "xx"); System.out.println("String after replacement :"+ str ); } } text/html 2024-02-16T01:05:43+02:00 https://code-reference.com/c/stdio.h/vsprintf?rev=1708041943&do=diff vsprintf int vsprintf(char *str, const char *format, va_list arg); generate a string from a format string. For this purpose, the buffer that is passed as first argument, the format string is copied and replaces the substitution symbol with the given parameters. text/html 2013-02-25T23:46:26+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_hex_string?rev=1361832386&do=diff unsigned long mysql_hex_string(char *to, const char *from, unsigned long length) description of mysql_hex_string mysql_hex_string is in work by code-reference.com if you are faster... don't hasitate and add it no example at the moment output of mysql_hex_string c example no example at the moment text/html 2013-09-04T17:20:16+02:00 https://code-reference.com/c/string.h/strncat?rev=1378308016&do=diff #include <stdlib.h> char *strncat(char *dest, const char *src, size_t n); appends the src string to the dest string, overwriting the null byte ('\0') at the end of dest, and then adds a terminating null byte. The strings may not overlap, and the dest string must have enough space for the result. text/html 2013-02-26T00:47:15+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_real_escape_string?rev=1361836035&do=diff unsigned long mysql_real_escape_string(MYSQL *mysql, char *to, const char *from, unsigned long length) description of mysql_real_escape_string mysql_real_escape_string is in work by code-reference.com if you are faster... don't hasitate and add it text/html 2013-02-17T03:15:08+02:00 https://code-reference.com/c/string.h/strcat?rev=1361067308&do=diff #include <stdlib.h> char *strcat(char *str1, const char *str2); description of strcat The strcat function concatenates two strings. str1 = target string to be added to source str2 = source string to copied, including '\ 0' at the end of destination. null byte of destination will be overwritten. text/html 2024-02-16T01:06:15+02:00 https://code-reference.com/c/string.h/memmove?rev=1708041975&do=diff memmove #include <stdlib.h> void *memmove(void *str1, const void *str2, size_t n); str1: target memory block (at least size bytes in size) str2: source memory block (at least size bytes in size) n: number of bytes to be copied (The type size_t corresponds usually int)) text/html 2024-02-16T01:05:51+02:00 https://code-reference.com/c/graphics.h/outtextxy?rev=1708041951&do=diff outtextxy Syntax of outtextxy #include <graphics.h> void outtextxy(int x, int y, char *textstring); Description of outtextxy outtextxy displays a text string in the viewport at the given position (x, y), using the current justification settings and the current font, direction, and size. To maintain code compatibility when using several fonts, use textwidth and textheight to determine the dimensions of the string. If a string is printed with the default font using outtext or outtextxy, a… text/html 2024-02-16T00:48:23+02:00 https://code-reference.com/c/stdio.h?rev=1708040903&do=diff Function Description BUFSIZ (integer value) size of the buffer clearerr Clears end-of-file and error indicators for a stream fclose Close the current stream / file feof Checks for the end-of-file ferror Checks for a stream error fflush Synchronises an output stream with the actual file fgetc Reads a byte/char from a file stream fgetpos Gets the stream position indicator fgets Reads … text/html 2024-02-16T01:12:02+02:00 https://code-reference.com/java/io/printstream/println?rev=1708042322&do=diff This line outputs the string parameter to the console with a line return. println(parameter): void parameters are: boolean, char, char[], double, float, int, long, Object, String Language Example System.out.println("Hello"); System.out.println("I am a programmer"); System.out.println(" 3 + 4 = " + 3+4 ); // appends 3 and 4 to the string System.out.println(" 3 + 4 = " + (3+4) ); // calculate 3+4 before the string "7" added text/html 2013-04-18T08:50:47+02:00 https://code-reference.com/java/lang/string/toarray?rev=1366267847&do=diff public char[] toCharArray() description of toCharArray() converts a string to a new character array example of toCharArray in java package codereferececomjava; public class CodeRefereceComJava { public static void main(String[] args) { String str = "some Text"; char[] text; System.out.println(str); // print the String text = str.toCharArray(); for (int i = 0; i <= text.length - 1; i++) { System.out.printl… text/html 2024-02-16T01:05:57+02:00 https://code-reference.com/c/graphics.h/outtext?rev=1708041957&do=diff outtext Syntax of outtext #include <graphics.h> void outtext(char *textstring); Description of outtext outtext displays a text string in the viewport, using the current font, direction, and size. outtext outputs textstring at the current position (CP). If the horizontal text justification is LEFT_TEXT and the text direction is HORIZ_DIR, the CP's x-coordinate is advanced by textwidth(textstring). Otherwise, the CP remains unchanged. To maintain code compatibility when using several font… text/html 2013-02-17T01:55:28+02:00 https://code-reference.com/c/string.h/strncpy?rev=1361062528&do=diff #include <string.h> char *strncpy(char *str1, const char *str2, size_t n); Copy a given Number of Chars into another string. #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <string.h> #define MAX 5 int main( void ) { char string1[MAX]; char string2[]="Test 12345"; strncpy(string1, string2, MAX); /* Copy MAX chars from string2 to string1 */ string1[MAX]='\0'; /* Terminate String */ … text/html 2013-01-24T20:08:54+02:00 https://code-reference.com/c/preprocessor/define?rev=1359054534&do=diff syntax /* define a symbolic constant */ #define identifier replacement list /* define a Macro */ #define identifier (identifier_list) replacement list description The #define directive replaces any additional occurrences of identifier in the source code by the specified list as a replacement string. This replacement affects only terminal symbols (ie independent occurrence of identifier in the source code), but not strings that appear in a comment section of another identifier or part of a … text/html 2024-02-16T01:05:24+02:00 https://code-reference.com/c/ctype.h/toupper?rev=1708041924&do=diff toupper #include <ctype.h> int toupper( int char ); Returns upper case type of the character C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <ctype.h> int main ( void ) { char string[30]; /* write the Chars "i" and "t" uppercase in the buffer "string" */ sprintf(string,"%c whant %chis in uppercase",toupper('i'), toupper('t')); printf("%s\n",string); return 0; } text/html 2013-02-25T16:22:36+02:00 https://code-reference.com/c/stdio.h/vfscanf?rev=1361805756&do=diff int vfscanf ( FILE * stream, const char * format, va_list arg ); description of vfscanf The vscanf(), vfscanf(), and vsscanf() functions shall be equivalent to the scanf(), fscanf(), and sscanf() functions, respectively, except that instead of being called with a variable number of arguments, they are called with an argument list as defined in the <stdarg.h> header. These functions shall not invoke the va_end macro. As these functions invoke the va_arg macro, the value of ap after the return … text/html 2018-01-12T07:29:06+02:00 https://code-reference.com/java/datatypes?rev=1515738546&do=diff package datatypes; public class DataTypes { public static void main(String[] args) { // primitiv Datatypes boolean aa = true; // 1 bit char bb = 'A'; // 2 Bytes char cc = 65; // 2 Bytes byte dd = 12; // 1 Byte -128 - +127 short ee = 234; // 2 Bytes -32768 - +32767 int ff = 4711; // 4 Bytes long gg = 34567; // 8 Bytes float hh = 3.14f; // 4 Bytes d… text/html 2013-02-03T21:07:29+02:00 https://code-reference.com/c/conio.h/cputs?rev=1359922049&do=diff int cputs(const char *str); description of cputs Returns a string to the screen. cputs is the null-terminated string from str in the current text window. The newline character is not here appended to the string. Depending _directvideo of the global variable, the string is written either directly or through a BIOS call to screen memory. To contrast to fprintf and printf, not translated cputs line character (\ n) in the combination of characters carriage return / line feed (\ r \ n). text/html 2013-02-17T02:13:47+02:00 https://code-reference.com/c/string.h/strspn?rev=1361063627&do=diff #include <stdlib.h> size_t strspn(const char *str1, const char *str2); strspn C Sourcecode Example /* * strspn example code * http://code-reference.com/c/string.h/strspn */ #include <stdio.h> #include <string.h> int main( void ) { const char string[] = "the answer is 42"; int pos = strspn(string, "the answer = 42"); printf("different char at position :%d\n",pos+1); return 0; } text/html 2024-02-16T01:05:23+02:00 https://code-reference.com/c/ctype.h/tolower?rev=1708041923&do=diff #include <ctype.h> int tolower( int char ); Returns lower case type of the character C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <ctype.h> int main ( void ) { char string[30]; /* write the Chars "i" and "t" lowercase in the buffer "string" */ sprintf(string,"%c WHANT %cHIS IN LOWERCASE",tolower('I'), tolower('T')); printf("%s\n",string); return 0; } text/html 2013-02-17T00:49:50+02:00 https://code-reference.com/c/string.h/strerror?rev=1361058590&do=diff #include <string.h> //#include <windows.h> /* uncomment this for Windows */ char *strerror(int errnum); Description returns a pointer to a string that describes the error code passed in the argument errnum compile this example with the compiler flag -lm text/html 2024-02-16T01:05:33+02:00 https://code-reference.com/c/wchar.h/fputws?rev=1708041933&do=diff fputws #include <wchar.h> int fputws(const wchar_t *string, FILE *stream); Description fputws writes the wide-character string to the stream, at the position of the file pointer and advances the pointer. If the write was successful, a nonnegative integer value is returned. Otherwise, the function returns WEOF. text/html 2024-02-16T01:05:41+02:00 https://code-reference.com/c/stdio.h/sprintf?rev=1708041941&do=diff #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ int sprintf(char *str, const char *format, ...); Like fprintf, but output written into string s, which must be large enough to hold the output, rather than to a stream. Output is NUL-terminated. Returns length (excluding the terminating NUL). text/html 2024-02-16T01:05:28+02:00 https://code-reference.com/c/wchar.h/btowc?rev=1708041928&do=diff btowc #include <wchar.h> wint_t btowc(int); Description convert a byte to wide character btowc returns the wide two byte character “wchar_t” converted from the single byte “string” character (char). return value If the argument is not a valid multibyte sequence of length 1 btowc returns WEOF. output is affected by the current LC_TYPE locale. text/html 2024-02-16T01:05:43+02:00 https://code-reference.com/c/stdio.h/vprintf?rev=1708041943&do=diff int vprintf(const char *format, va_list arg); Equivalent to printf with variable argument list replaced by arg, which must have been initialised by the va_start macro (and may have been used in calls to va_arg). is used to generate a string from a format string and then print to standard output stdout. vprintf can understood as a combination of puts and vsprintf. text/html 2018-08-02T23:58:03+02:00 https://code-reference.com/bash/how_to?rev=1533247083&do=diff Example Description bash: "How To" ... utilize string substitutions string substitutions (replace, extract, ...) bash: "How To" ... utilize tests tests (string is in list, string contains substring, ...) bash: "How To" ... running commands run command from variable, check execution result, check if run by root, ... text/html 2024-02-16T01:06:17+02:00 https://code-reference.com/objective-c/control_structures/if?rev=1708041977&do=diff if ( condition == true ){ command; } if example 1 objective c NSString *string = @"i wouldn't want to go anywhere without my wonderful towel"; if ([string isEqualToString:@"i wouldn't want to go anywhere without my wonderful towel"]) { NSInteger a=42; NSLog(@"correct %i", a); } else if ([string isEqualToString:@"42"]) { NSLog(@"Sorry but the answer is not correct"); } text/html 2024-02-16T01:05:48+02:00 https://code-reference.com/c/graphics.h/kbhit?rev=1708041948&do=diff kbhit Syntax of kbhit #include "graphics.h" int kbhit(void); Description of kbhit The kbhit function is available in the winbgim implementation of BGI graphics. You do not need to include conio.h; just include graphics.h. The function returns true (non-zero) if there is a character in the input buffer ready to read. Otherwise it returns false. In order to work, the user must click in the graphics window (i.e., the Windows focus must be in the graphics window). text/html 2013-03-06T21:20:46+02:00 https://code-reference.com/cpp/time?rev=1362601246&do=diff Time Manipulation clock Clock program (function ) difftime return difference between two times (function ) mktime Convert tm structure to time_t (function ) time Get current time (function ) Conversion text/html 2013-03-06T21:27:57+02:00 https://code-reference.com/cpp/ctime?rev=1362601677&do=diff Time Manipulation Functions clock Clock program difftime return difference between two times mktime Convert tm structure to time_t time Get current time Conversion Functions text/html 2015-12-10T13:35:50+02:00 https://code-reference.com/bash/quick_reference?rev=1449750950&do=diff Bash quick reference Command Description Example & Run the previous command in the background ls & && Logical AND if [ “$foo” -ge “0” ] && [ “$foo” -le “9”] || Logical OR if [ “$foo” -lt “0” ] || [ “$foo” -gt “9” ] (not in Bourne shell) ^ Start of line grep ”^foo” $ End of line grep “foo$” = String equality (cf. -eq) if [ “$foo” = “bar” ] ! Logical NOT if [ “$foo” != “bar” ] $$ PID of current shell echo “my PID = $$” $! PID of last background command ls & echo “PID of ls = $!” $? exit status… text/html 2013-02-03T21:10:45+02:00 https://code-reference.com/c/conio.h/putch?rev=1359922245&do=diff int putch(int c); description of putch prints characters on the screen. putch gives the character c to the current text window. It is a text-mode function that displays output directly to the console. putch replaces the newline character (\ n) characters are not merchandise return / line feed. Depending _directvideo of the global variable, the string is written either directly or through a BIOS call to screen memory. text/html 2024-02-16T01:05:40+02:00 https://code-reference.com/c/stdio.h/fgets?rev=1708041940&do=diff fgets char *fgets(char *str, int n, FILE *stream); Copies characters from (input) stream stream to sstr, stopping when n-1 characters copied, newline copied, end-of-file reached or error occurs. If no error, str is NUL-terminated. Returns NULL on end-of-file or error, str otherwise. text/html 2017-07-31T22:37:05+02:00 https://code-reference.com/wiki/syntax?rev=1501533425&do=diff DokuWiki supports some simple markup language, which tries to make the datafiles to be as readable as possible. This page contains all possible syntax you may use when editing the pages. Simply have a look at the source of this page by pressing the Edit this page button at the top or bottom of the page. If you want to try something, just use the playground page. The simpler markup is easily accessible via quickbuttons, too. text/html 2024-02-16T01:05:47+02:00 https://code-reference.com/c/graphics.h/settextjustify?rev=1708041947&do=diff settextjustify Syntax of settextjustify #include <graphics.h> void settextjustify(int horiz, int vert); Description of settextjustify Text output after a call to settextjustify is justified around the current position (CP) horizontally and vertically, as specified. The default justification settings are LEFT_TEXT (for horizontal) and TOP_TEXT (for vertical). The enumeration text_just in graphics.h provides names for the horiz and vert settings passed to settextjustify. ==== Description … text/html 2024-02-16T01:04:50+02:00 https://code-reference.com/c/stdlib.h/mblen?rev=1708041890&do=diff #include <stdlib.h> int mblen(const char *str, size_t n); Description Determines how many bytes are used for a character. <setlocale.h> is for this example nessesary mblen C Sourcecode Example 1 /* * mblen example code * http://code-reference.com/c/stdlib.h/mblen */ #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <stdlib.h> #include <locale.h> /* for setlocale */ int main(void) { setlocale(LC_ALL,""); … text/html 2013-02-25T16:27:34+02:00 https://code-reference.com/c/stdio.h/vsscanf?rev=1361806054&do=diff int vsscanf(const char *restrict s, const char *restrict format, va_list arg); description of vsscanf The vscanf(), vfscanf(), and vsscanf() functions shall be equivalent to the scanf(), fscanf(), and sscanf() functions, respectively, except that instead of being called with a variable number of arguments, they are called with an argument list as defined in the <stdarg.h> header. These functions shall not invoke the va_end macro. As these functions invoke the va_arg macro, the value of ap aft… text/html 2013-04-10T10:14:25+02:00 https://code-reference.com/java/util/scanner/nextline?rev=1365581665&do=diff public String nextLine() return the scanned content from the input example nextLine() in java package scanner; import java.util.Scanner; public class Scanner { public static void main(String[] args) { /* Create Scanner Object for the input from the keyboard */ Scanner scan = new Scanner(System.in); String line; System.out.print("Please enter what you want: "); line = scan.nextLine(); // read keyboard buffer … text/html 2024-02-16T01:05:33+02:00 https://code-reference.com/c/wchar.h/fputwc?rev=1708041933&do=diff fputwc #include <wchar.h> wint_t fputwc(wchar_t, FILE *); Description fputwc writes a single wide-character to the stream at the position of the file pointer and advances the pointer. If the write was successful, the character that was written is returned. Otherwise, the function returns WEOF. text/html 2024-02-16T01:05:57+02:00 https://code-reference.com/c/graphics.h/getch?rev=1708041957&do=diff getch Syntax of getch #include "graphics.h" int getch(void); Description of getch The getch function is available in the winbgim implementation of BGI graphics. You do not need to include conio.h; just include graphics.h. The function reads one character from the keyboard and returns its ASCII value (without waiting for a return key). In order to work, the user must click in the graphics window (i.e., the Windows focus must be in the graphics window). For special keys, the getch functio… text/html 2013-05-27T18:35:18+02:00 https://code-reference.com/java/util/scanner?rev=1369672518&do=diff Reads input from a Keyboard, or a Device CODE_SIGN_IDENTITY --verify --file-list --display -r- Terminal.app example Scanner in java package scanner; import java.util.Scanner; public class Scanner { public static void main(String[] args) { /* Create Scanner Object for the input from the keyboard */ Scanner scan = new Scanner(System.in); double currency, amount, exchangeRate; String currencyName, newCurrency; … text/html 2024-02-16T01:06:15+02:00 https://code-reference.com/c/string.h/strcmp?rev=1708041975&do=diff #include <string.h> //#include <windows.h> /* uncomment this for Windows */ int strcmp (const char *s1, const char *s) Description strcmp Compares 2 C strings. If both strings are identical, the return value of strcmp is 0. If the string s1 less than s2, the return value is less than 0, and s1 is greater than s2, then the return value greater than 0 text/html 2013-04-10T10:11:22+02:00 https://code-reference.com/java/lang/string/touppercase?rev=1365581482&do=diff toUpperCase() toUpperCase(locale) description of toUpperCase returns the String, converted to uppercase. example of toUpperCase in java package lang; public class Lang { public static void main(String[] args) { String str = "test 1234"; str = str.toUpperCase(); // str = str.toUpperCase(Locale.SIMPLIFIED_CHINESE); // for Simplified Chinese System.out.println(str+" in uppercase"); } } text/html 2024-02-16T00:48:17+02:00 https://code-reference.com/arduino/data_types?rev=1708040897&do=diff data types Overview Name Description array array booleanvariables booleanvariables byte byte char char double double float float int int long long short short string string stringobject stringobject unsignedchar unsignedchar unsignedint unsignedint unsignedlong unsignedlong void void word word automatically generated overview ... Change this page if you have a better description text/html 2013-04-10T10:11:06+02:00 https://code-reference.com/java/lang/string/tolowercase?rev=1365581466&do=diff toLowerCase() toLowerCase(locale); description of toLowerCase returns the String, converted to lowerspace. example of toLowerCase in java package lang; public class Lang { public static void main(String[] args) { String str = "TEST 1234"; str = str.toLowerCase(); // str = str.toLowerCase(Locale.SIMPLIFIED_CHINESE); // for Simplified Chinese System.out.println(str+" in lowercase"); } } text/html 2024-02-16T01:12:24+02:00 https://code-reference.com/objective-c/foundation.framework/nsstring.h/stringwithformat?rev=1708042344&do=diff stringWithFormat + (id)stringWithFormat:(NSString *)format, ... Returns a string created by using a given format string as a template into which the remaining argument values are substituted ObjC Sourcecode Example int a= 42; // string composed of single varable NSString *myString=[NSString stringWithFormat:@"the answer to life the universe and everything is %i", a]; NSLog(@"MyString: %@", myString); … text/html 2013-04-10T10:10:51+02:00 https://code-reference.com/java/lang/string/charat?rev=1365581451&do=diff charAt(int index) description of charAt returns char value at the specified index of string. example of charAt in java package lang; public class Lang { public static void main(String[] args) { String str = "test 1234"; char chr; chr = str.charAt(1); System.out.println(chr+" is the 2 char"); } } text/html 2024-02-16T01:06:15+02:00 https://code-reference.com/c/string.h/memcpy?rev=1708041975&do=diff memcpy void *memcpy(void *str1, const void *str2, size_t n); Copy a string into another variable important here is to give the size of the string #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <string.h> int main ( void ) { char source[20]="Test 1234 ! :D"; char dest[20]; memcpy (dest,source,strlen(source)+1); printf ("Value of Destination is %s\n",dest); return 0; } text/html 2014-08-19T02:25:26+02:00 https://code-reference.com/objective-c/examples/uiwebview_using_local_resources?rev=1408407926&do=diff Sometimes you need or want to load a UIWebView displaying content provided with an app. If there is more then one site it might make sense to have an external .css or .js file for all your html content. Whatever, I was facing this problem currently and decided to provide my solution to you. text/html 2024-02-16T01:12:24+02:00 https://code-reference.com/objective-c/foundation.framework/nsstring.h/stringbyappendingformat?rev=1708042344&do=diff - (NSString *)stringByAppendingFormat:(NSString *)format, … Returns a string made by appending to the receiver a string constructed from a given format string and the following arguments. ObjC Sourcecode Example for(int a=0; a<5; a++) { NSString *cycle=@"Pass"; cycle=[cycle stringByAppendingFormat:@"%i", a]; NSLog(@"%@", cycle); } text/html 2024-02-16T01:05:47+02:00 https://code-reference.com/c/graphics.h/setfillstyle?rev=1708041947&do=diff setfillstyle Syntax of setfillstyle #include <graphics.h> void setfillstyle(int pattern, int color); Description of setfillstyle setfillstyle sets the current fill pattern and fill color. To set a user- defined fill pattern, do not give a pattern of 12 (USER_FILL) to setfillstyle; instead, call setfillpattern. If invalid input is passed to setfillstyle, graphresult returns -1 (grError), and the current fill pattern and fill color remain unchanged. Note: The EMPTY_FILL style is like a so… text/html 2024-02-16T01:05:22+02:00 https://code-reference.com/c/ctype.h/isdigit?rev=1708041922&do=diff int isdigit(int chr); tests if a character a digit C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <ctype.h> int main ( void ) { int i; char string[11]="Test\n-!&%1"; for (i=0; i <= 11;i++) { if ( isdigit(string[i]) != 0 ) { printf("Character %i is a digit\n",i); } } return 0; } text/html 2024-02-16T01:04:34+02:00 https://code-reference.com/cpp/cctype/isupper?rev=1708041874&do=diff isupper int isupper(int chr); tests wheather a char is in uppercase cpp Sourcecode Example #include <iostream> /* including standard library */ #include <string> #include <cctype> using namespace std; int main ( void ) { int i; string str="Test -!&%1"; for (i=0; i <= 11;i++) { if ( isupper(str[i]) != 0 ) { cout << "Character " << i << " is uppercase" << endl; } } return 0; } text/html 2024-02-16T01:05:54+02:00 https://code-reference.com/c/graphics.h/getcolor?rev=1708041954&do=diff getcolor Syntax of getcolor #include <graphics.h> int getcolor(void); Description of getcolor getcolor returns the current drawing color. The drawing color is the value to which pixels are set when lines and so on are drawn. For example, in CGAC0 mode, the palette contains four colors: the background color, light green, light red, and yellow. In this mode, if getcolor returns 1, the current drawing color is light green. text/html 2014-06-27T15:56:36+02:00 https://code-reference.com/c/stdlib.h/mbtowc?rev=1403877396&do=diff mbtowc #include <stdlib.h> int mbtowc(whcar_t *pwc, const char *str, size_t n); Description converts a multibyte character into a wide character. <setlocale.h> <wchar.h> is for this example nessesary mbtowc C Sourcecode Example /* * mbtowc example code * http://code-reference.com/c/stdlib.h/mbtowc */ #include <stdio.h> #include <stdlib.h> #include <wchar.h> /* wint_t*/ #include <locale.h> /* setlocale*/ int main(void) { wchar_t wchar; char string[] = "mbtowc: 測試… text/html 2013-02-17T02:32:06+02:00 https://code-reference.com/c/string.h/strstr?rev=1361064726&do=diff #include <stdlib.h> char *strstr(const char *str1, const char *str2); strstr C Sourcecode Example /* * strstr example code * http://code-reference.com/c/string.h/strstr */ #include <stdio.h> #include <string.h> int main ( void ) { char str[] = "42 is the result or ? but what was the question"; char *ptr; // set the Pointer ptr to "or ?" ptr = strstr (str, "or ?"); // replace the text with "yes" strncpy (ptr, "yes", 3); printf("%s\n",str); return 0; } text/html 2024-02-16T01:04:43+02:00 https://code-reference.com/c/time.h/ctime?rev=1708041883&do=diff ctime #include <time.h> char *ctime(const time_t *timer); Description The ctime() function shall convert the time pointed to by clock, representing time in seconds since the Epoch, to local time in the form of a string. It shall be equivalent to text/html 2024-02-16T01:05:55+02:00 https://code-reference.com/c/graphics.h/textwidth?rev=1708041955&do=diff textwidth Syntax of textwidth #include <graphics.h> int textwidth(char *textstring); Description of textwidth The graphics function textwidth takes the string length, current font size, and multiplication factor, and determines the width of textstring in pixels. This function is useful for computing viewport widths, sizing a title to make it fit on a graph or in a box, and so on. Use textwidth to compute the width of strings, instead of doing the computations manually. When you use this… text/html 2024-02-16T01:05:23+02:00 https://code-reference.com/c/ctype.h/isspace?rev=1708041923&do=diff isspace int isspace(int chr); checks whether a character a space C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <ctype.h> int main ( void ) { int i; char string[11]="Test -!&%1"; for (i=0; i <= 11;i++) { if ( isspace(string[i]) != 0 ) { printf("Character %i is a space\n",i); } } return 0; } text/html 2024-02-16T01:04:24+02:00 https://code-reference.com/arduino/utilities/sizeof?rev=1708041864&do=diff Description The sizeof operator returns the number of bytes in a variable type, or the number of bytes occupied by an array. Syntax sizeof(variable) Parameters variable: any variable type or array (e.g. int, float, byte) Example code The sizeof operator is useful for dealing with arrays (such as strings) where it is convenient to be able to change the size of the array without breaking other parts of the program. text/html 2024-02-16T01:05:43+02:00 https://code-reference.com/c/stdio.h/vfprintf?rev=1708041943&do=diff int vfprintf(FILE *stream, const char *format, va_list arg); Equivalent to fprintf with variable argument list replaced by arg, which must have been initialised by the va_start macro (and may have been used in calls to va_arg). C Sourcecode Example /* * vfprintf example code * http://code-reference.com/c/stdio.h/vfprintf */ #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <stdarg.h> int myfprintf( FILE *file, char c… text/html 2024-02-16T01:05:24+02:00 https://code-reference.com/c/ctype.h/islower?rev=1708041924&do=diff islower int islower(int chr); checks whether a character is lowercase C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <ctype.h> int main ( void ) { int i; char string[11]="Test -!&%1"; for (i=0; i <= 11;i++) { if ( islower(string[i]) != 0 ) { printf("Character %i is a lower char\n",i); } } return 0; } text/html 2024-02-16T01:05:23+02:00 https://code-reference.com/c/ctype.h/isalpha?rev=1708041923&do=diff isalpha int isalpha(int chr); check if a character Alphabetical C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <ctype.h> int main () { int i; char string[11]="Test -!&%1"; for (i=0; i <= 11;i++) { if ( isalpha(string[i]) != 0 ) { printf("Character %i is alphabetical\n",i); } } return 0; } text/html 2024-02-16T01:05:22+02:00 https://code-reference.com/c/ctype.h/isgraph?rev=1708041922&do=diff isgraph int isgraph(int chr); checks for any printing character except space (' ') C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <ctype.h> int main ( void ) { int i; char string[11]="Test\n-!&%1"; for (i=0; i <= 11;i++) { if ( isgraph(string[i]) != 0 ) { printf("Character %i is a graph\n",i); } } return 0; } text/html 2013-02-17T01:24:56+02:00 https://code-reference.com/c/string.h/strpbrk?rev=1361060696&do=diff #include <string.h> char *strpbrk(char *s1, const char *s2); finds the first occurrence of a character. #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <string.h> int main( void ) { char string1[]="You can help with your experience to improve this page"; char string2[]="help"; printf("So please %s\n", strpbrk( string1, string2 ) ); return 0; } text/html 2024-02-16T01:12:21+02:00 https://code-reference.com/objective-c/foundation.framework/nsarray.h/initwithobjects?rev=1708042341&do=diff initWithObjects - (id)initWithObjects:(id)firstObj, ... NS_REQUIRES_NIL_TERMINATION; Parameters firstObj, secondObj... Comma-separated objects ending with nil. Return Value An array initialized to include the parameters objects. After an immutable array has been initialized in this way, it can’t be modified. text/html 2024-02-16T01:05:48+02:00 https://code-reference.com/c/graphics.h/initwindow?rev=1708041948&do=diff initwindow Syntax of initwindow #include "graphics.h" int initwindow(int width, int height, const char* title="Windows BGI", int left=0, int top=0, bool dbflag=false, closeflag=true); Description of initwindow The initwindow function is available in the winbgim implementation of BGI graphics. You do not need to include conio.h; just include graphics.h. The function initializes the graphics system by opening a graphics window of the specified size. The first two parameters (width and hei… text/html 2024-02-16T01:05:23+02:00 https://code-reference.com/c/ctype.h/iscntrl?rev=1708041923&do=diff iscntrl int iscntrl(int chr); Tests if a character a control character C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <ctype.h> int main ( void ) { int i; char string[11]="Test\n-!&%1"; for (i=0; i <= 11;i++) { if ( iscntrl(string[i]) != 0 ) { printf("Character %i is a control char\n",i); } } return 0; } text/html 2024-02-16T01:04:34+02:00 https://code-reference.com/cpp/cctype/ispunct?rev=1708041874&do=diff ispunct int ispunct(int chr); tests whether a character is punctuation mark cpp Sourcecode Example #include <iostream> /* including standard library */ #include <string> #include <cctype> using namespace std; int main ( void ) { int i; string str="Test -!&%1"; for (i=0; i <= 11;i++) { if ( ispunct(str[i]) != 0 ) { cout << "Character " << i << " is a punctuation mark" << endl; } } return 0; } text/html 2013-02-09T01:10:31+02:00 https://code-reference.com/c/conio.h/getpass?rev=1360368631&do=diff char *getpass(const char *ptr); description of getpass reads a password getpass reads a password from the system console, after the user is prompted for a password to a null-terminated string and display the password has been disabled. A pointer to a null-terminated string of up to eight characters (not counting null terminator) is returned. text/html 2013-04-10T10:12:37+02:00 https://code-reference.com/java/lang/object/equals?rev=1365581557&do=diff Compares object and indecates if they equal equals(Object); return value: boolean true/false equals Example in java String a = "42"; String b = "144"; if ( a.equals(b) ) { System.out.println(b+" is the answer"); } else { System.out.println(b+" is probably not the answer"); } text/html 2024-02-16T01:04:33+02:00 https://code-reference.com/cpp/cctype/isprint?rev=1708041873&do=diff isprint int isprint(int chr); tests if character is printable cpp Sourcecode Example #include <iostream> /* including standard library */ #include <string> #include <cctype> using namespace std; int main ( void ) { int i; string str="Test -!&%1"; for (i=0; i <= 11;i++) { if ( isprint(str[i]) != 0 ) { cout << "Character " << i << " is printable char" << endl; } } return 0; } text/html 2024-02-16T01:12:02+02:00 https://code-reference.com/java/io/printstream/print?rev=1708042322&do=diff Outputs the string parameter without a line return print(parameter): void parameters are: boolean, char, char[], double, float, int, long, Object, String return value: void Language Example System.out.print("Hello"); System.out.print("I am a programmer"); text/html 2024-02-16T01:04:33+02:00 https://code-reference.com/cpp/cctype/isgraph?rev=1708041873&do=diff isgraph int isgraph(int chr); checks for any printing character except space (' ') cpp Sourcecode Example #include <iostream> /* including standard library */ #include <string> #include <cctype> using namespace std; int main ( void ) { int i; string str="Test\n-!&%1"; for (i=0; i <= 11;i++) { if ( isgraph(str[i]) != 0 ) { cout << "Character " << i << " is a graph" << endl; } } return 0; } text/html 2024-02-16T01:05:23+02:00 https://code-reference.com/c/ctype.h/isalnum?rev=1708041923&do=diff isalnum int isalnum(int chr); check if a character Alphanumeric C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <ctype.h> int main () { int i; char string[11]="Test -!&%1"; for (i=0; i <= 11;i++) { if ( isalnum(string[i]) != 0 ) { printf("Character %i is alphanumeric\n",i); } } return 0; } text/html 2024-02-16T01:05:24+02:00 https://code-reference.com/c/ctype.h/isxdigit?rev=1708041924&do=diff isxdigit int isxdigit(int chr); checks whether a character is hexadecimal C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <ctype.h> int main ( void ) { int i; char string[11]="Test -!&%1"; for (i=0; i <= 11;i++) { if ( isxdigit(string[i]) != 0 ) { printf("Character %i is a xdigit\n",i); } } return 0; } text/html 2024-02-16T01:05:23+02:00 https://code-reference.com/c/ctype.h/isupper?rev=1708041923&do=diff isupper int isupper(int chr); tests wheather a char is in uppercase C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <ctype.h> int main ( void ) { int i; char string[11]="Test -!&%1"; for (i=0; i <= 11;i++) { if ( isupper(string[i]) != 0 ) { printf("Character %i is uppercase\n",i); } } return 0; } text/html 2013-02-17T01:55:52+02:00 https://code-reference.com/c/string.h/strncmp?rev=1361062552&do=diff #include <stdlib.h> int strncmp(const char *str1, const char *str2, size_t n); The strcmp() function compares the two strings s1 and s2. It returns an integer less than, equal to, or greater than zero if s1 is found, respectively, to be less than, to match, or be greater than s2. The strncmp() function is similar, except it only compares the first (at most) n characters of s1 and s2. text/html 2024-02-16T01:05:57+02:00 https://code-reference.com/c/graphics.h/getbkcolor?rev=1708041957&do=diff getbkcolor Syntax of getbkcolor #include <graphics.h> int getbkcolor(void); Description of getbkcolor getbkcolor returns the current background color. (See the table in setbkcolor for details.) Example of getbkcolor /* getbkcolor example */ #include <graphics.h> #include <stdlib.h> #include <string.h> #include <stdio.h> #include <conio.h> int main(void) { /* request autodetection */ int gdriver = DETECT, gmode, errorcode; int bkcolor, midx, midy; char bkname[35]; /… text/html 2024-02-16T01:05:22+02:00 https://code-reference.com/c/ctype.h/isascii?rev=1708041922&do=diff isascii int isascii(int char); a macro that tests if a char a ASCII char (0-127) is C Sourcecode Example /* * isascii example code * http://code-reference.com/c/ctype.h/isascii */ #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <ctype.h> int main ( void ) { int i; char string[11]="Test ÖÄ%1"; for (i=0; i <= 11;i++) { if ( isascii(string[i]) != 0 ) { printf("character %i isascii ch… text/html 2018-01-12T07:29:08+02:00 https://code-reference.com/c?rev=1515738548&do=diff Online reference for the C (standard) library C is an imperative programming language that the computer scientist Dennis Ritchie developed in the early 1970s at Bell Laboratories for System Programming of the operating system Unix. C Library Overview Library Description assert.h Overview assertion ctype.h character classification math.h mathematical functions mysql Overview MySQL implementation stdarg.h Overview … text/html 2024-02-16T01:04:35+02:00 https://code-reference.com/cpp/cctype/islower?rev=1708041875&do=diff islower int islower(int chr); checks whether a character is lowercase cpp Sourcecode Example #include <iostream> /* including standard library */ #include <string> #include <cctype> using namespace std; int main ( void ) { int i; string str="Test -!&%1"; for (i=0; i <= 11;i++) { if ( islower(str[i]) != 0 ) { cout << "Character " << i << " is a lower char" << endl; } } return 0; } text/html 2013-02-09T14:16:01+02:00 https://code-reference.com/c/conio.h?rev=1360415761&do=diff Library Description cgets Reads a string from the console. clrscr clears the screen and move the cursor to upper left corner cprintf prints formatted output to the screen. cputs Returns a string to the screen. cscanf reads input from the console and reformat it. delline delete the line containing the cursor and move all lines below it one line up. getch prompts the user to press a character getche … text/html 2024-02-16T01:12:24+02:00 https://code-reference.com/objective-c/foundation.framework/nsstring.h/stringbyappendingstring?rev=1708042344&do=diff stringByAppendingString -(NSString *)stringByAppendingString:(NSString *)aString; Returns a new string made by appending a given string to the receiver. ObjC Sourcecode Example NSString *cycle=@"Pass"; for(int a=0; a<5; a++) { NSString *intValue=[NSString stringWithFormat:@"%i", a]; cycle=[cycle stringByAppendingString:intValue]; NSLog(@"%@", cycle); } text/html 2024-02-16T01:05:22+02:00 https://code-reference.com/c/ctype.h/isprint?rev=1708041922&do=diff isprint int isprint(int chr); tests if character is printable C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <ctype.h> int main ( void ) { int i; char string[11]="Test -!&%1"; for (i=0; i <= 11;i++) { if ( isprint(string[i]) != 0 ) { printf("Character %i is printable char\n",i); } } return 0; } text/html 2024-02-16T01:04:35+02:00 https://code-reference.com/cpp/cctype/isxdigit?rev=1708041875&do=diff int isxdigit(int chr); checks whether a character is hexadecimal cpp Sourcecode Example #include <iostream> /* including standard library */ #include <string> #include <cctype> using namespace std; int main ( void ) { int i; string str="Test -!&%1"; for (i=0; i <= 11;i++) { if ( isxdigit(str[i]) != 0 ) { cout << "Character " << i << " is a xdigit" << endl; } } return 0; } text/html 2024-02-16T01:04:34+02:00 https://code-reference.com/cpp/cctype/isdigit?rev=1708041874&do=diff isdigit int isdigit(int chr); tests if a character a digit cpp Sourcecode Example #include <iostream> /* including standard library */ #include <string> #include <cctype> using namespace std; int main ( void ) { int i; string str="Test\n-!&%1"; for (i=0; i <= 11;i++) { if ( isdigit(str[i]) != 0 ) { cout << "Character " << i << " is a digit" << endl; } } return 0; } text/html 2024-02-16T01:05:23+02:00 https://code-reference.com/c/ctype.h/ispunct?rev=1708041923&do=diff ispunct int ispunct(int chr); tests whether a character is punctuation mark C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <ctype.h> int main ( void ) { int i; char string[11]="Test -!&%1"; for (i=0; i <= 11;i++) { if ( ispunct(string[i]) != 0 ) { printf("Character %i is a punctuation mark\n",i); } } return 0; } text/html 2013-04-10T10:13:38+02:00 https://code-reference.com/java/util/scanner/nextdouble?rev=1365581618&do=diff public double nextDouble() double scanned from the input example nextDouble in java package scanner; import java.util.Scanner; public class Scanner { public static void main(String[] args) { /* Create Scanner Object for the input from the keyboard */ Scanner scan = new Scanner(System.in); double currency, amount, exchangeRate; String currencyName, newCurrency; System.out.print("Please enter the amount (with d… text/html 2024-02-16T01:04:34+02:00 https://code-reference.com/cpp/cctype/isspace?rev=1708041874&do=diff isspace int isspace(int chr); checks whether a character a space cpp Sourcecode Example #include <iostream> /* including standard library */ #include <string> #include <cctype> using namespace std; int main ( void ) { int i; string str="Test -!&%1"; for (i=0; i <= 11;i++) { if ( isspace(str[i]) != 0 ) { cout << "Character " << i << " is a space" << endl; } } return 0; } text/html 2024-02-16T01:04:34+02:00 https://code-reference.com/cpp/cctype/isascii?rev=1708041874&do=diff int isascii(int char); a macro that tests if a char a ASCII char (0-127) is cpp Sourcecode Example /* * isascii example code * http://code-reference.com/cpp/cctype/isascii */ #include <iostream> /* including standard library */ #include <string> #include <cctype> using namespace std; int main ( void ) { int i; string str="Test ÖÄ%1"; for (i=0; i <= 11;i++) { if ( isascii(str) != 0 ) { cout << "character" << i << " isascii" << endl; } } return … text/html 2024-02-16T01:04:34+02:00 https://code-reference.com/cpp/cctype/iscntrl?rev=1708041874&do=diff iscntrl int iscntrl(int chr); Tests if a character a control character cpp Sourcecode Example #include <iostream> /* including standard library */ #include <string> #include <cctype> using namespace std; int main ( void ) { int i; string str="Test\n-!&%1"; for (i=0; i <= 11;i++) { if ( iscntrl(str[i]) != 0 ) { cout << "Character " << i << " is a control char" << endl; } } return 0; } text/html 2015-08-08T12:50:39+02:00 https://code-reference.com/c/conio.h/cprintf?rev=1439031039&do=diff int cprintf(const char *format[, argument, ...]); description of cprintf prints formatted output to the screen. cprintf takes multiple arguments, applies to each of the format specifier contained in the format string, pointed to by format, and prints the formatted data directly to the current text window on the screen. The number of available format must match the number of arguments. text/html 2024-02-16T01:05:42+02:00 https://code-reference.com/c/stdio.h/puts?rev=1708041942&do=diff puts int puts(const char *str); Writes str (excluding terminating NUL) and a newline to stdout. Returns non-negative on success, EOF on error. Example Source /* * puts example code * http://code-reference.com/c/stdio.h/puts */ #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ int main ( void ) { char string [30] = "This is a test for puts!"; puts (string); return 0; } text/html 2024-02-16T01:05:23+02:00 https://code-reference.com/c/ctype.h/isblank?rev=1708041923&do=diff isblank int isblank(int chr); Test if a char a space, only in C99 Compilers available isblank #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <ctype.h> int main ( void ) { int i; char string[11]="Test -!&%1"; for (i=0; i <= 11;i++) { if ( isblank(string[i]) != 0 ) { printf("Character %i is a blank char\n",i); } } return 0; } text/html 2024-02-16T01:04:34+02:00 https://code-reference.com/cpp/cctype/isblank?rev=1708041874&do=diff isblank int isblank(int chr); Test if a char a space, only in C99 Compilers available isblank #include <iostream> /* including standard library */ #include <string> #include <cctype> using namespace std; int main ( void ) { int i; string str="Test -!&%1"; for (i=0; i <= 11;i++) { if ( isblank(str[i]) != 0 ) { cout << "Character " << i << " is a blank char" << endl; } } return 0; } text/html 2013-04-18T09:11:21+02:00 https://code-reference.com/java/loops/for?rev=1366269081&do=diff for ( init; condition; increment ){ statements; } description of for a for loop do statements while the condition is true/untrue, the increment counts the loop, it is possible to use more than 1 condition in the for loop example 1 of for in java package codereferececomjava; public class CodeRefereceComJava { public static void main(String[] args) { int myOtherCount=5; for (int i = 0; i <= myOtherCount; i++) { System.out.print… text/html 2024-02-16T01:05:41+02:00 https://code-reference.com/c/stdio.h/sscanf?rev=1708041941&do=diff #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ int sscanf(const char *str, const char *format, ...); sscanf reads formatted input text from the string addressed by source . No file input is performed. Following the format in the argument list may be one or more additional pointers addressing storage where the input values are stored. text/html 2024-02-16T01:04:35+02:00 https://code-reference.com/cpp/cctype/isalpha?rev=1708041875&do=diff int isalpha(int chr); check if a character Alphabetical cpp Sourcecode Example #include <iostream> /* including standard library */ #include <string> #include <cctype> using namespace std; int main ( void ) { int i; string str="Test -!&%1"; for (i=0; i <= 11;i++) { if ( isalpha(str[i]) != 0 ) { cout << "Character " << i << " is alphabetical" << endl; } } return 0; } text/html 2024-02-16T01:04:35+02:00 https://code-reference.com/cpp/cctype/isalnum?rev=1708041875&do=diff int isalnum(int chr); check if a character Alphanumeric cpp Sourcecode Example #include <iostream> /* including standard library */ #include <string> #include <cctype> using namespace std; int main () { int i; string str="Test -!&%1"; for (i=0; i <= 11;i++) { if ( isalnum(str[i]) != 0 ) { cout << "Character " << i << " is alphanumeric" << endl; } } return 0; } text/html 2024-02-16T01:05:42+02:00 https://code-reference.com/c/stdio.h/rename?rev=1708041942&do=diff int rename(const char *old_filename, const char *new_filename); Changes name of file oldname to newname. Returns non-zero on failure. Example Source /* * rename example code * http://code-reference.com/c/stdio.h/rename */ #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #define FILENAME "test_tmp.txt" int main ( void ) { FILE *tmpfile; char string[20]; tmpfile = fopen(FILENAME, "w"); if (tmpfile == 0 ) { perror("cannot ope… text/html 2024-02-16T01:05:44+02:00 https://code-reference.com/c/stdio.h/remove?rev=1708041944&do=diff int remove(const char *filename); Removes specified file. Returns non-zero on failure. Example Source /* * remove example code * http://code-reference.com/c/stdio.h/remove */ #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #define FILENAME "test_tmp.txt" int main ( void ) { FILE *tmpfile; char string[20]; tmpfile = fopen(FILENAME, "w"); if (tmpfile == 0 ) { perror("cannot open file"); } fprintf (tmpfile, "temporary file f… text/html 2024-02-16T01:05:56+02:00 https://code-reference.com/c/graphics.h/getmaxcolor?rev=1708041956&do=diff getmaxcolor Syntax of getmaxcolor #include <graphics.h> int getmaxcolor(void); Description of getmaxcolor getmaxcolor returns the highest valid color value for the current graphics driver and mode that can be passed to setcolor. For example, on a 256K EGA, getmaxcolor always returns 15, which means that any call to setcolor with a value from 0 to 15 is valid. On a CGA in high-resolution mode or on a Hercules monochrome adapter, getmaxcolor returns a value of 1. Windows Notes The winb… text/html 2018-08-02T23:45:28+02:00 https://code-reference.com/bash?rev=1533246328&do=diff path description examples bash examples case bash case quick_reference bash quick reference shortcuts bash shortcuts Overview: bash "How To" snippets “how to” snippets (string substitution, tests, dynamic variables, ...) text/html 2024-02-16T01:04:49+02:00 https://code-reference.com/c/stdlib.h/system?rev=1708041889&do=diff #include <stdlib.h> int system(const char *string); system calls a command on the shell system c code example /* * system example code * http://code-reference.com/c/stdlib.h/system */ #include <stdio.h> #include <stdlib.h> int main (void) { char * command = "uname -a"; int cmd = system( command ); if( cmd == -1 ) { printf( "Error while initalize system command.\n"); } else if( cmd > 0 ) { printf( "command return value %d.\n", cmd ); } else printf( "success\n" )… text/html 2013-03-07T04:04:54+02:00 https://code-reference.com/java/io/printstream?rev=1362625494&do=diff Printstream Name Description append Appends the specified character to this output stream checkerror Flush the stream and check if it contains errors close Closes the stream flush Flushes the stream format Writes a formatted string to the output stream print Prints various data types to an output stream println Prints various data types to an output stream then terminates the line write Writes the specified byte to this output stream text/html 2024-02-16T01:12:24+02:00 https://code-reference.com/objective-c/foundation.framework/nsstring.h/isequaltostring?rev=1708042344&do=diff isEqualToString - (BOOL)isEqualToString:(NSString *)aString; Returns a Boolean value that indicates whether a given string is equal to the receiver using an literal Unicode-based comparison. ObjC Sourcecode Example NSString *myString1=@"Hello World"; NSString *myString2=@"Hello World"; if([myString1 isEqualToString:myString2]){ NSLog(@"similar"); } else{ NSLog(@"dissimilar"); } … text/html 2024-02-16T01:05:53+02:00 https://code-reference.com/c/graphics.h/getpalettesize?rev=1708041953&do=diff getpalettesize Syntax of getpalettesize #include <graphics.h> int getpalettesize(void); Description of getpalettesize getpalettesize is used to determine how many palette entries can be set for the current graphics mode. For example, the EGA in color mode returns 16. text/html 2024-02-16T01:03:57+02:00 https://code-reference.com/java/control_structures/continue?rev=1708041837&do=diff continiue; continiue breaks a loop at a given point and continiue the loop example of continiue in java package codereferececomjava; public class CodeRefereceComJava { public static void main(String[] args) { int i; for (i=40;i<=45;i++) { if (i==42) continue; System.out.println("The answer is probably not "+i); } } } text/html 2014-08-21T18:09:48+02:00 https://code-reference.com/c/stdio.h/printf?rev=1408637388&do=diff printf #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ int printf ( const char * restrict format, ... ); Arguments The function printf prints format to STDOUT Code Description %c character value %s string of characters %d signed integer %i signed integer %f floating point value %e scientific notation, with a lowercase “e” %E scientific notation, with a uppercase “E” %g use %e or %f %G use %E or %f %o octa… text/html 2018-01-12T07:29:06+02:00 https://code-reference.com/java/main?rev=1515738546&do=diff A class contains attributes(objects,variables,etc) and methods(pieces of code). The main method is the method which will run. Place any code you want to run inside the main method. public class test { public static void main(String[] args) { } } text/html 2013-02-28T00:07:19+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_error?rev=1362006439&do=diff const char *mysql_error(MYSQL *mysql) description of mysql_error provides the error description of the last failed function. the function was executed successfully, it returns an empty string #include <stdio.h> /* including standard library */ #include <mysql/mysql.h> MYSQL *my; MYSQL_RES *result; int main( void ){ char host[20]; char user[20]; char pass[20]; my = mysql_init(NULL); sprintf(host,"localhost"); sprintf(user,"username"); sprintf(pass,"password"); if (my == NULL ) { pr… text/html 2024-02-16T01:05:25+02:00 https://code-reference.com/c/examples/mysql_bruteforce?rev=1708041925&do=diff MySQL Bruteforce written while a boring day more information on <http://code-reference.com> #include <stdio.h> #include <mysql/mysql.h> #include <curses.h> #include <string.h> #include <stdlib.h> // Deutsch oder English #define GER 1 #define ENG 0 /* ************************************************************************************************** * MYSQL Bruteforce Programm aus purer lange Weile geschrieben * 23.03 2010 by cd * * gcc mysql-bruteforce.c -o mysql-bruteforce -lmysqlcli… text/html 2024-02-16T01:05:54+02:00 https://code-reference.com/c/graphics.h/getx?rev=1708041954&do=diff getx Syntax of getx #include <graphics.h> int getx(void); Description of getx getx finds the current graphics position's x-coordinate. The value is viewport-relative. Example of getx /* getx example */ #include <graphics.h> #include <stdlib.h> #include <stdio.h> #include <conio.h> int main(void) { /* request autodetection */ int gdriver = DETECT, gmode, errorcode; char msg[80]; /* initialize graphics and local variables */ initgraph(&gdriver, &gmode, ""); /* r… text/html 2013-04-10T10:35:55+02:00 https://code-reference.com/java/control_structures/if?rev=1365582955&do=diff if ( condition == true ){ command; } check if a condition is true or false example of if in java package plausibilitycheck; import java.util.Scanner; public class Plausibilitycheck{ /** * @param args the command line arguments */ public static void main(String[] args) { int celsius; double fahrenheit; Scanner scan = new Scanner(System.in); System.out.print("Please type in Celsius : "); celsius = scan.nextInt(); … text/html 2013-04-10T10:14:40+02:00 https://code-reference.com/java/util/scanner/nextlong?rev=1365581680&do=diff public long nextLong() return long scanned from the input example nextLong() in java package scanner; import java.util.Scanner; public class Scanner { public static void main(String[] args) { /* Create Scanner Object for the input from the keyboard */ Scanner scan = new Scanner(System.in); long currency; System.out.print("Please enter a number: "); currency = scan.nextLong(); // read keyboard buffer … text/html 2024-02-16T01:05:50+02:00 https://code-reference.com/c/graphics.h/setlinestyle?rev=1708041950&do=diff setlinestyle Syntax of setlinestyle #include <graphics.h> void setlinestyle(int linestyle, unsigned upattern, int thickness); Description of setlinestyle setlinestyle sets the style for all lines drawn by line, lineto, rectangle, drawpoly, and so on. The linesettingstype structure is defined in graphics.h as follows: struct linesettingstype { int linestyle; unsigned upattern; int thickness; }; linestyle specifies in which of several styles subsequent lines will be drawn (such a… text/html 2024-02-16T01:04:13+02:00 https://code-reference.com/arduino/variable_scope_and_qualifiers/const?rev=1708041853&do=diff The const keyword stands for constant. It is a variable qualifier that modifies the behavior of the variable, making a variable ”read-only”. This means that the variable can be used just as any other variable of its type, but its value cannot be changed. You will get a compiler error if you try to assign a value to a const variable. text/html 2024-02-16T01:04:02+02:00 https://code-reference.com/java/variables/global_variable?rev=1708041842&do=diff define a global variable in java, after the public class block example of global varialbe in java package codereferececomjava; public class CodeRefereceComJava { public static int globalDigit; // define a global variable public static void main(String[] args) { int digit = 5; // define and inital a local variable globalDigit = digit; // initalisize the global variable funct(); // call funct(); } public static void f… text/html 2013-04-26T10:02:18+02:00 https://code-reference.com/java/classes/extends?rev=1366963338&do=diff extends extends an already existing class with custom methods package myclass.mydate; import java.util.Date; /* * extends Date = extends class java.util.Date * java.util.Date must be importet */ public class MyDate extends Date { public int getFullYear() { return this.getYear() + 1900; } // overrride the method getMonth from java.util.Date @Override public int getMonth() { return 99; } } text/html 2024-02-16T01:12:03+02:00 https://code-reference.com/java/lang/math/random?rev=1708042323&do=diff Math.random() double; generate a 'double' random number example of Math.random in java package codereferececomjava; public class CodeRefereceComJava { public static void main(String[] args) { double randomDigit; randomDigit = Math.random(); System.out.println(randomDigit); // random number as double System.out.println(randomDigit*1000+1); //double random number between 1-1000 System.out.println((int)(randomDigit*1000+1)); //double random … text/html 2024-02-16T01:04:43+02:00 https://code-reference.com/c/time.h/asctime?rev=1708041883&do=diff asctime char *asctime(const struct tm *timeptr); Description The function asctime() converts the time in the struct ptr to a character string of the format: Day Month Date Hour:Minute:Second Year\n\0 asctime C Sourcecode Example /* * asctime example code * http://code-reference.com/c/time.h/asctime */ #include <stdio.h> #include <time.h> int main ( void ) { time_t rawtime; struct tm * timeinfo; time ( &rawtime ); timeinfo = localtime ( &rawtime ); printf ( "Current … text/html 2013-04-10T15:55:29+02:00 https://code-reference.com/java/control_structures/switch?rev=1365602129&do=diff The switch statement is a multi-select control structure. An expression is evaluated once and compared to 'constants'. In case of equality, the 'statements' that come after the 'constant' are processed. In switch 'statements' can only ordinary data types (ie, 'int', 'long', char, short, etc.) can be used. text/html 2024-02-16T01:05:57+02:00 https://code-reference.com/c/graphics.h/getmaxmode?rev=1708041957&do=diff getmaxmode Syntax of getmaxmode #include <graphics.h> int getmaxmode(void); Description of getmaxmode getmaxmode lets you find out the maximum mode number for the currently loaded driver, directly from the driver. This gives it an advantage over getmoderange, which works for Borland drivers only. The minimum mode is 0. text/html 2013-02-26T16:34:25+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_info?rev=1361892865&do=diff const char *mysql_info(MYSQL *mysql) description of mysql_info A character string containing additional information about the most recent query. NULL if no information about the request are available. compile with gcc mysql_info.c -o mysql_info `mysql_config –cflags –libs` -Wall text/html 2024-02-16T01:04:50+02:00 https://code-reference.com/c/stdlib.h/getenv?rev=1708041890&do=diff #include <stdlib.h> char *getenv(const char *name); getenv matches the string pointed to by name returns a pointer to the value in the environment, or NULL if there is no match. getenv C Sourcecode Example /* * getenv example code * http://code-reference.com/c/stdlib.h/getenv */ #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <stdlib.h> int main ( void ) { char *env; env = getenv ("USER"); if (env!=NULL)… text/html 2018-01-12T07:29:07+02:00 https://code-reference.com/java/loops/do?rev=1515738547&do=diff do { command; } while (condition); a do loop will run while a condition is false example of do loop in java package codereferececomjava; public class CodeRefereceComJava { public static void main(String[] args) { int i=4; do { i++; } while(i==4); System.out.println("i is :" + i ); } } text/html 2024-02-16T01:05:48+02:00 https://code-reference.com/c/graphics.h/graphresult?rev=1708041948&do=diff graphresult Syntax of graphresult #include <graphics.h> int graphresult(void); Description of graphresult graphresult returns the error code for the last graphics operation that reported an error and resets the error level to grOk. The following table lists the error codes returned by graphresult. The enumerated type graph_errors defines the errors in this table. graph_errors is declared in graphics.h. code  constant Corresponding error message string 0 grOk No error -1grNoInitGra… text/html 2017-07-30T01:49:38+02:00 https://code-reference.com/playground/c/stdio.h/printf?rev=1501372178&do=diff printf #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ int printf ( const char * restrict format, ... ); Arguments The function printf prints format to STDOUT Code Description %c character value %s string of characters %d signed integer %i signed integer %f floating point value %e scientific notation, with a lowercase “e” %E scientific notation, with a uppercase “E” %g use %e or %f %G use %E or %f %o octa… text/html 2024-02-16T01:03:58+02:00 https://code-reference.com/java/control_structures/else?rev=1708041838&do=diff if ( condition == true ){ command; } else { // if the "if" condition false command; } check if a condition is true or false example of else package plausibilitycheck; import java.util.Scanner; public class Plausibilitycheck{ /** * @param args the command line arguments */ public static void main(String[] args) { int celsius; double fahrenheit; Scanner scan = new Scanner(System.in); System.out.print("Please … text/html 2014-04-05T05:08:20+02:00 https://code-reference.com/c/string.h/strlen?rev=1396667300&do=diff size_t strlen(const char *str); calculates the size of a char array C Sourcecode Example #include <stdio.h> #include <string.h> int main (void) { char ss[20] = "hello world"; int length = strlen(ss); int i; printf ("strlen is %i\n", length); for ( i = 0; i < length ; ++ i ) printf ("iam at char count %i\n", i); return 0; } text/html 2024-02-16T01:03:57+02:00 https://code-reference.com/java/control_structures/break?rev=1708041837&do=diff break; continiue breaks a loop at a given point and exit the loop example of break in java package codereferececomjava; public class CodeRefereceComJava { public static void main(String[] args) { int i; for (i=42;i<=45;i++) { if (i==43) break; System.out.println("The answer is probably "+i); } } } text/html 2024-02-16T01:05:54+02:00 https://code-reference.com/c/graphics.h/gety?rev=1708041954&do=diff gety Syntax of gety #include <graphics.h> int gety(void); Description of gety gety returns the current graphics position's y-coordinate. The value is viewport-relative. Example of gety /* gety example */ #include <graphics.h> #include <stdlib.h> #include <stdio.h> #include <conio.h> int main(void) { /* request autodetection */ int gdriver = DETECT, gmode, errorcode; char msg[80]; /* initialize graphics and local variables */ initgraph(&gdriver, &gmode, ""); /* … text/html 2024-02-16T01:05:55+02:00 https://code-reference.com/c/graphics.h/getmodename?rev=1708041955&do=diff getmodename Syntax of getmodename #include <graphics.h> char *getmodename(int mode_number); Description of getmodename getmodename accepts a graphics mode number as input and returns a string containing the name of the corresponding graphics mode. The mode names are embedded in each driver. The return values ("320*200 CGA P1," "640*200 CGA", and so on) are useful for building menus or displaying status. text/html 2013-04-10T10:12:06+02:00 https://code-reference.com/java/lang/math/round?rev=1365581526&do=diff rounds a number example of round in java package roundanumber; import java.lang.Math; public class Roundanumber { public static void main(String[] args) { // TODO code application logic here double number, number2; number = 33.384422; number2 = 33.898823; System.out.println("number: " + Math.round(number)); System.out.println("number2: " + Math.round(number2)); } } text/html 2013-04-10T10:13:54+02:00 https://code-reference.com/java/util/scanner/nextfloat?rev=1365581634&do=diff public float nextFloat() return float scanned from the input example nextFloat in java package scanner; import java.util.Scanner; public class Scanner { public static void main(String[] args) { /* Create Scanner Object for the input from the keyboard */ Scanner scan = new Scanner(System.in); float currency; System.out.print("Please enter a number: "); currency = scan.nextFloat(); // read currency … text/html 2024-02-16T01:12:04+02:00 https://code-reference.com/java/lang/system/exit?rev=1708042324&do=diff public static void exit(int status) exit a programm with a return code example exit in java package test; public class Test{ public static void main(String[] args) { System.out.println("Example for exit in java"); System.exit(1); System.out.println("sorry but this is after our exit"); } } text/html 2024-02-16T01:04:48+02:00 https://code-reference.com/c/stdlib.h/bsearch?rev=1708041888&do=diff bsearch #include <stdlib.h> void *bsearch(const void *key, const void *base, size_t nitems, size_t size, int (*compare)(const void *, const void *)); key - The element that is searched for base - pointer to the first element of the array to be searched nitems - number of elements in the array size - size of a single element compare - comparison function to compare two elements together. text/html 2013-04-11T10:03:40+02:00 https://code-reference.com/java/loops/while?rev=1365667420&do=diff while (condition) { //command } a while loop do something while a condition example of while loop in java package codereferececomjava; public class CodeRefereceComJava { public static void main(String[] args) { int i=4; while(i==4) { i++; } System.out.println("i is :" + i ); } } text/html 2024-02-16T01:05:25+02:00 https://code-reference.com/c/examples/ftp_scanner?rev=1708041925&do=diff simple ftp scanner written by MoD and ZehDeh 2001 example of a simple ftp scanner in c #include <stdio.h> #include <string.h> #include <netdb.h> #include <netinet/in.h> #include <sys/socket.h> #include <sys/types.h> #include <sys/select.h> void logintoftp(); char tmp[256]; char name[300], pass[300], buf[300], buf2[300]; char snd[1024], rcv[1024]; int n; int sockfd; int main(int argc, char **argv) { char sendln[1024], recvln[4048], buf1[800], buf2[1000]; char *p, *q; int len, offset =… text/html 2024-02-16T01:06:21+02:00 https://code-reference.com/objective-c/foundation.framework/nsstring.h?rev=1708041981&do=diff NSString The NSString class declares the programmatic interface for an object that manages immutable strings. NSString is implemented to represent an array of Unicode characters, in other words, a text string. caseinsensitivecompare isequaltostring lowercasestring stringbyappendingformat stringbyappendingstring stringwithformat uppercasestring text/html 2013-02-15T20:47:55+02:00 https://code-reference.com/arduino/variable_scope_and_qualifiers/variabledeclaration?rev=1360957675&do=diff A variable is a way of naming and storing a value for later use by the program, such as data from a sensor or an intermediate value used in a calculation. Declaring Variables Before they are used, all variables have to be declared. Declaring a variable means defining its type, and optionally, setting an initial value (initializing the variable). Variables do not have to be initialized (assigned a value) when they are declared, but it is often useful. text/html 2024-02-16T01:12:24+02:00 https://code-reference.com/objective-c/foundation.framework/nsstring.h/caseinsensitivecompare?rev=1708042344&do=diff -(NSComparisonResult)caseInsensitiveCompare:(NSString *)string; Returns the result of invoking compare:options: with NSCaseInsensitiveSearch as the only option. ObjC Sourcecode Example NSString *myString1=@"HELLO WORLD"; NSString *myString2=@"hello world"; if([myString1 caseInsensitiveCompare:myString2]==NSOrderedSame){ NSLog(@"similar"); } else{ NSLog(@"dissimilar"); } /* … text/html 2013-04-10T10:14:55+02:00 https://code-reference.com/java/util/scanner/nextshort?rev=1365581695&do=diff public short nextShort() return short scanned from the input example nextShort() in java package scanner; import java.util.Scanner; public class Scanner { public static void main(String[] args) { /* Create Scanner Object for the input from the keyboard */ Scanner scan = new Scanner(System.in); short currency; System.out.print("Please enter a number: "); currency = scan.nextShort(); // read keyboard buffer … text/html 2024-02-16T01:05:51+02:00 https://code-reference.com/c/graphics.h/grapherrormsg?rev=1708041951&do=diff grapherrormsg Syntax of grapherrormsg #include <graphics.h> char * grapherrormsg(int errorcode); Description of grapherrormsg grapherrormsg returns a pointer to the error message string associated with errorcode, the value returned by graphresult. Refer to the entry for errno in the Library Reference, Chapter 4, for a list of error messages and mnemonics. text/html 2013-04-17T08:11:25+02:00 https://code-reference.com/java/variables/array?rev=1366179085&do=diff an array, it is a object variable (box,container), which is a variable in a position to take up more than one object of the same type and manage it example of arrays in java package arrays; public class Arrays { public static void main(String[] args) { int[] digits1; // Reference Variable int[] digits2= new int[5]; // Definition with 5 x Integer int[] digits3= {1,2,3,4,5}; // Definie with initialization ( 5 Integer) // pass Element… text/html 2024-02-16T01:04:45+02:00 https://code-reference.com/c/control_structures/return?rev=1708041885&do=diff return #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ return value; returns a value C Sourcecode Example #include <stdio.h> /* including standard library */ //#include <windows.h> /* uncomment this for Windows */ #include <stdlib.h> #include <string.h> int yesno( char value1[], char value2[] ){ if ( strcmp( value1, value2 ) == 0) { return 0; } else { return 1; } } int main(void) { char str… text/html 2024-02-16T01:12:27+02:00 https://code-reference.com/objective-c/foundation.framework/nsnumber.h/descriptionwithlocale?rev=1708042347&do=diff descriptionWithLocale - (NSString *)descriptionWithLocale:(id)aLocale Returns a string that represents the contents of the receiver for a given locale. ObjC Sourcecode Example //** Sample Datatypes ** int myInt= 1000000; double myDouble = 3.14; float myFloat = 1.123456f; char myChar = 'w'; //** Initializing NSNumber Objects ** NSNumber *myIntNumber = [[NSNumber alloc]initWithInt:myInt]; NSNumber *myDoubleNumber = [[NSNumber alloc]initWithDouble… text/html 2013-04-10T10:14:10+02:00 https://code-reference.com/java/util/scanner/nextint?rev=1365581650&do=diff public int nextInt() return int scanned from the input example nextInt in java package scanner; import java.util.Scanner; public class Scanner { public static void main(String[] args) { /* Create Scanner Object for the input from the keyboard */ Scanner scan = new Scanner(System.in); int currency; System.out.print("Please enter a number: "); currency = scan.nextInt(); // read currency System.… text/html 2024-02-16T01:05:57+02:00 https://code-reference.com/c/graphics.h/getmaxheight?rev=1708041957&do=diff getmaxheight Syntax of getmaxheight #include <graphics.h> int getmaxheight(void); Description of getmaxheight The getmaxheight function is available in the winbgim implementation of BGI graphics. The function returns the maximum height that will fit on the screen when creating a window with initwindow. This is one of the few BGI functions that may be called before calling initwindow. Note: The value returned is correct for a window with a non-empty title. If you create a window with the… text/html 2018-08-03T05:58:24+02:00 https://code-reference.com/bash/how_to/tests?rev=1533268704&do=diff bash: "How To" ... utilize tests operationwhatcodestringvariable equal to “xyz“if [ $STR == “xyz” ]variable unequal to “xyz“if [ $STR != “xyz” ]variable contains substring “xyz“if [[ $STR =~ “xyz” ]]variable is in list “abc” or “def” (or ...)if [[ $STR =~ ^(“abc”|“def”)$ ]]integervariable equal to nif [ $STR -eq n ]file“node” exists (whatever type i.e. file, folder, ...)if [ -e “node” ]regular “filename” existsif [ -f “filename” ]create unique temporary filetouch /tmp/$$.tmpfind file “filename…