Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Java Java Basics Perfecting the Prototype Looping until the value passes

Jiang Qian
PLUS
Jiang Qian
Courses Plus Student 5,612 Points

About Do while loop in java

I am the opposite of clever. and i am having trouble understand "dowhileloop". Can somebody explain to me in the easiest plain way? What does it do?????? Please don't copy paste the explanation from the java documentation, i tried, couldn't understand. thankyou

Example.java
// I have initialized a java.io.Console for you. It is in a variable named console.
String response;
do {
    response = console.readLine("Do you understand do while loops?  ");
} while(response.equalsIgnoreCase("no"));
console.printf("Because you said %s, you passed the test", response);
Matthew Magee
Matthew Magee
8,772 Points

A Do...While loop will automatically enter the loop before checking if a condition is true or false. A While loop will not enter the loop until it has determined that a condition is true or false. So, you can always count on a Do...While loop to run the code inside the do {.....} block at least one time. It will then check the while(...) portion to see if the condition is true. If it is, it will repeat the code inside the do{...} block. With a While loop, the code inside the loop may never run if the condition is not true.

1 Answer