Java Do While Loop | DigitalOcean

• Blog
• Docs
• Get Support
• Contact Sales

• Tutorials
• Questions
• Product Docs
• Search Community

Report this

What is the reason for this report?This undefined is spamThis undefined is offensiveThis undefined is off-topicThis undefined is otherSubmit

Table of contents

1. Java do while loop

1. Tutorials
2. Java
3. Java do while loop

TutorialJava do while loopPublished on August 3, 2022Java

By Pankaj Kumar

Table of contentsPopular topics

Java do-while loop is used to execute a block of statements continuously until the given condition is true. The do-while loop in Java is similar to while loop except that the condition is checked after the statements are executed, so do while loop guarantees the loop execution at least once.

Java do while loop

Java do while loop syntax is as follows:

do { // statements } while (expression);

The expression for the do-while loop must return a boolean value, otherwise, it will throw compile-time error.

do while java flow diagram

Java do-while loop example

Here is a simple java do-while loop example to print numbers from 5 to 10.

package com.journaldev.javadowhileloop; public class JavaDoWhileLoop { public static void main(String[] args) { int i = 5; do { System.out.println(i); i++; } while (i <= 10); } }

do while true java

We can create an infinite loop by passing boolean expression as true in the do while loop. Here is a simple do while java infinite loop example.

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 inserting rows into database System.out.println("End Processing of do while loop"); Thread.sleep(5 * 1000); } while (true); } }

Note that you will have to manually quit the application to stop it, using Ctrl+C if the program is executed in the terminal. If you execute the program in Eclipse IDE then there is a red color button to terminate the program.

do while vs while loop

The only time you should use a do-while loop is when you want to execute the statements inside the loop at least once, even though condition expression returns false. Otherwise, it’s always better to use a while loop. Java while loop looks cleaner than a do-while loop. That’s all for java do while loop. You should also look into java for loop and java continue statement. Reference: Oracle Documentation

Thanks for learning with the DigitalOcean Community. Check out our offerings for compute, storage, networking, and managed databases.

Learn more about our products

About the author

Pankaj KumarAuthorSee author profile

Java and Python Developer for 20+ years, Open Source Enthusiast, Founder of https://www.askpython.com/, https://www.linuxfordevices.com/, and JournalDev.com (acquired by DigitalOcean). Passionate about writing technical articles and sharing knowledge with others. Love Java, Python, Unix and related technologies. Follow my X @PankajWebDev

See author profileCategory:TutorialTags:JavaWhile we believe that this content benefits our community, we have not yet thoroughly reviewed it. If you have any suggestions for improvements, please let us know by clicking the “report an issue“ button at the bottom of the tutorial.

Still looking for an answer?

Ask a questionSearch for more helpWas this helpful?YesNoComments(4)Follow-up questions(0)JournalDevFebruary 7, 2019Show less

hi Pankaj, Can you please correct the “if condition is true arrow” in the image?

- Nikhil

JournalDevFebruary 25, 2019Show less

please give syntax for do while loop

- rupesh

JournalDevDecember 26, 2019Show less

The image still displays the wrong arrow…

- Roman

JournalDevAugust 29, 2020Show less

import java.util.*; public class accepting { public static void main(String[] args) { //accept System.out.println (“Programe to accept your name”); Scanner sc = new Scanner(System.in); System.out.print("Enter Fullname : "); String fullname = sc.nextLine(); System.out.print("Enter Lastname : "); String lastname = sc.nextLine(); System.out.print("Enter Nickname : "); String nickname = sc.nextLine(); System.out.print(“Enter Student ID : “); String id = sc.nextLine(); //output System.out.println (”\n” + fullname + " " + lastname + " " + nickname + " " + id); } }

- VARAPON YUSOP

This work is licensed under a Creative Commons Attribution-NonCommercial- ShareAlike 4.0 International License.

Deploy on DigitalOcean

Click below to sign up for DigitalOcean's virtual machines, Databases, and AIML products.Sign up

Popular Topics

1. AI/ML
2. Ubuntu
3. Linux Basics
4. JavaScript
5. Python
6. MySQL
7. Docker
8. Kubernetes
9. All tutorials
10. Talk to an expert

Featured tutorials

1. SOLID Design Principles Explained: Building Better Software Architecture
2. How To Remove Docker Images, Containers, and Volumes
3. How to Create a MySQL User and Grant Privileges (Step-by-Step)

• All tutorials
• All topic tags

Join the Tech Talk

Success! Thank you! Please check your email for further details.

Please complete your information!

• Table of contents
• Java do while loop

• Deploy on DigitalOcean

  Click below to sign up for DigitalOcean's virtual machines, Databases, and AIML products.Sign up

  Popular Topics

  1. AI/ML
  2. Ubuntu
  3. Linux Basics
  4. JavaScript
  5. Python
  6. MySQL
  7. Docker
  8. Kubernetes
  9. All tutorials
  10. Talk to an expert

  Featured tutorials

  1. SOLID Design Principles Explained: Building Better Software Architecture
  2. How To Remove Docker Images, Containers, and Volumes
  3. How to Create a MySQL User and Grant Privileges (Step-by-Step)
  • All tutorials
  • All topic tags

Become a contributor for community

Get paid to write technical tutorials and select a tech-focused charity to receive a matching donation.

Sign Up

DigitalOcean Documentation

Full documentation for every DigitalOcean product.

Learn more

Resources for startups and AI-native businesses

The Wave has everything you need to know about building a business, from raising funding to marketing your product.

Learn more

Get our newsletter

Stay up to date by signing up for DigitalOcean’s Infrastructure as a Newsletter.

SubmitSubmit

New accounts only. By submitting your email you agree to our Privacy Policy

The developer cloud

Scale up as you grow — whether you're running one virtual machine or ten thousand.

View all products

Get started for free

Sign up and get $200 in credit for your first 60 days with DigitalOcean.*

Get started

*This promotional offer applies to new accounts only.

© 2026 DigitalOcean, LLC.Sitemap.