while and do while Loop in Java

March 1, 2022 Java

In this post, you will learn how to work with while and do while loop so that you can use that same knowledge and thus evolve.

a cycle allows executing an instruction or a set of instructions several times;
the while and the while loops loop (item) according to a given condition (it must be true);
the difference between these two loops is that the while loop executes all its content at least once, whether the condition is true or false.

package com.caffeinealgorithm.programminginjava;

public class WhileAndDoWhileLoop {
  public void Run() {
    int counter = 1;

    while (counter <= 10) {
      System.out.printf("[while] Counter: %d\n", counter);
      counter++;
    }

    counter = 1;

    do {
      System.out.printf("[do while] Counter: %d\n", counter);
      counter++;
    } while (counter <= 10);
  }
}

/*
  [while] Counter: 1
  [while] Counter: 2
  [while] Counter: 3
  [while] Counter: 4
  [while] Counter: 5
  [while] Counter: 6
  [while] Counter: 7
  [while] Counter: 8
  [while] Counter: 9
  [while] Counter: 10
  [do while] Counter: 1
  [do while] Counter: 2
  [do while] Counter: 3
  [do while] Counter: 4
  [do while] Counter: 5
  [do while] Counter: 6
  [do while] Counter: 7
  [do while] Counter: 8
  [do while] Counter: 9
  [do while] Counter: 10
*/

Don’t forget to watch the video and you can always read this post in Portuguese.

while and do while Loop in Java

Happy coding!