Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Java Java Basics Perfecting the Prototype Looping until the value passes

I am stuck

I know that I need to do an 'if' maybe but it doesnt tell me what to have the 'boolean' listed at...am i on the wrong track with this one?

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();

1 Answer

Tri Pham
Tri Pham
18,671 Points

In a do while loop, you keep DOing something WHILE a condition is true. You need to put a java expression in the last pair of parenthesis that returns a boolean. for example, switch in "while(response.length() > 10 )" and the program keeps running as long as you keep entering responses with more than 10 characters.