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3.13. The while statement
Last updated: 23 January 2013.

The while statement allows you to repeat the execution of the same statements as long as a certain condition evaluates to true. Here is the syntax of the while statement:

while (<condition>) {

   
// the statements that are to be executed repeatedly go here

}

condition is an expression that evaluates to true or false. In the example shown below, the method whileLoop prints the positive integers under 10 to the standard output:

public class JavaLoops {

   
public void whileLoop(){

         
final int MAX_VALUE = 10;
         
int i = 0;

         
while( i < MAX_VALUE){
               
System.out.println(i);
                ++i;
         
}
    }

}

Create a class named App and call the method whileLoop:

public class App {

   
public static void main(String[] args) {

         
new JavaLoops().whileLoop();

   
}

}

The output is:

0
1
2
3
4
5
6
7
8
9


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