The Java while loop has two components, a condition and a statements. The statement may be a single statement or a block of statements, and the condition defines the condition that controls the loop. The condition may be any valid Boolean expression. The loop repeats while the given condition...
The infinite loops, sometimes, result intoStackOverflowErrororOutOfMemoryErrorbased on what we are trying to do in the loop. If there are no memory leaks, it is possible that the loop never terminates and executes infinitely. The program will hang in this situation. 4. Difference betweenWhile-...
The while loop loops through a block of code as long as a specified condition is true:SyntaxGet your own Java Server while (condition) { // code block to be executed } In the example below, the code in the loop will run, over and over again, as long as a variable (i) is less ...
package com.journaldev.javadowhileloop; public class DoWhileTrueJava { public static void main(String[] args) throws InterruptedException { do { System.out.println("Start Processing inside do while loop"); // look for a file at specific directory // if found, then process it, such as inser...
Then the loop stops. Flowchart of do...while loop Flowchart of Java do while loop Let's see the working of do...while loop. Example 3: Display Numbers from 1 to 5 // Java Program to display numbers from 1 to 5 import java.util.Scanner; // Program to find the sum of natural ...
java public class WhileLoopExample { public static void main(String[] args) { int count = 0; while (count < 5) { System.out.println("count = " + count); count++; } } } 3. do-while 循环 do-while 循环与 while 循环类似,但它会先执行一次代码块,然后再检查条件。
While Loop The second basic type of loop in Java that I will discuss is the "while loop". A while loop is actually just a conditional that repeats itself as long as the condition stays true. It looks a lot like an if statement. Here take a look: ...
Retirement2.java import java.util.*;/** * This program demonstrates a do/while loop. * @version 1.20 2004-02-10 * @author Cay Horstmann */public classRetirement2{public static voidmain(String[]args){Scannerin=newScanner(System.in);System.out.print("How much money will you contribute ever...
Eventually the test is false, the loop exits, and the program continues with the line after the while-loop. For example, the above while-loop prints: count:0 count:1 count:2 count:3 ... count:98 count:99 all done! The count variable starts at 0, and increases by 1 on each ite...
int loop = 1; while(loop<=5){ Integer.parseInt(JOptionPane.showInputDialog("Enter a number: ")); if(num<0) negative++; if(num>=0) positive++; loop++; } JOptionPane.showMessageDialog(null,"Negative numbers in the program: " + negative + "\nPositive numbers in the program: " + pos...