Java

do While Loop in Java

The do-while loop always executes its body at least once, because its conditional expression is at the bottom of the loop.The do-while loop first executes the body of the loop and then evaluates the conditional expression. If this expression is true, the loop will repeat. Otherwise, the loop terminates.

The first body of the loop is executed.
The condition is checked, and if true, the body of the loop inside the do statement is executed again.
The condition is checked again.
This process continues until the condition is false.
When the condition is false, the loop stops.

Syntax

do
{
    // body of loop;
    // Increment (or) Decrement;
}  while(Condition) ;

Code Snippet

//Do While Loop in Java

import java.util.Scanner;

public class App {
    public static void main(String args[]) {
        System.out.println("Enter The Limit : ");
        Scanner in = new Scanner(System.in);

        int n = in.nextInt();

        int i = 2;
        do {
            System.out.println(i);
            i = i + 2;
        } while (i <= n);
    }
}