https://code-reference.com/ 2026-05-26T01:55:28+02:00 https://code-reference.com/ https://code-reference.com/ttps://code-reference.com/lib/tpl/dokuwiki/images/favicon.ico text/html 2024-02-16T01:04:00+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 2013-04-26T10:02:18+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 2024-02-16T01:06:19+02:00 https://code-reference.com/objective-c/examples/tabbarcontroller?rev=1708041979&do=diff Add two UIViewController named RootViewController and SecondRootViewController to your empty project Create a TabBarController for your project First step import the RootViewController.h and SecondRootViewController.h in your AppDelegate #import "RootViewController.h" #import "SecondRootViewController.h" text/html 2024-02-16T01:06:19+02:00 https://code-reference.com/objective-c/examples/rootviewcontroller?rev=1708041979&do=diff Add a UIViewController named RootViewController to your empty project Add a RootViewController to your project First step import the RootViewController.h in your AppDelegate #import "RootViewController.h" Second step initialize and add the RootViewController to window text/html 2024-02-16T01:06:19+02:00 https://code-reference.com/objective-c/examples/navigationcontroller?rev=1708041979&do=diff Add a UIViewController named RootViewController to your empty project Create a NavigationController for your project First step import the RootViewController.h in your AppDelegate #import "RootViewController.h" Second step initialize NavigationController with RootViewController and add it to window 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 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 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 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 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 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 2024-02-16T01:03:58+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 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 2013-04-10T10:12:06+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 2013-04-10T10:13:38+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 2024-02-16T01:06:18+02:00 https://code-reference.com/objective-c/uikit.framework/uialerview.h?rev=1708041978&do=diff UIAlertView ---------- UIAlertView is a standard class in the UIKit framework. It is commonly used to display the state of something, or even just be used a way to communicate to the user in iOS applications. Code #import <UIKit/UIKit> - (void) viewDidLoad { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Title Message" message:@"This is a simple message!" delegate:self canc… 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 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…