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java:control_structures:else [2024/02/16 01:03] (current)
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 +====== else ======
 +<code java>
 + if ( condition == true ){
 +    command;    
 + } else {
 +      // if the "if" condition false
 +      command;
 +      }
 +</code>
 +check if a condition is true or false
  
 +===== example of else=====
 +<code 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();
 +
 +        if (celsius > 0) {
 +
 +            fahrenheit = celsius * 1.8 + 32;
 +            System.out.println(celsius + "° Celsius are " + fahrenheit + "° Fahrenheit");
 +        } else {
 +
 +            System.out.println("invalid Celsius Value ");
 +        }
 +
 +    }
 +}
 +
 +</code>
 +
 +=== output else ===
 +     Please type in Celsius: 0
 +     invalid Celsius Value
 +    

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java/control_structures/else.txt · Last modified: 2024/02/16 01:03 (external edit)

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