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

Posted by Megan Zanders
Megan Zanders
3,623 Points

Help. I am on challenge 2 of 3 and I am stuck.

I am not sure what I am doing wrong. Can someone point out my mistakes?

Example.java 
// I have initialized a java.io.Console for you. It is in a variable named console.
String response = console.readLine("Do you understand while loops?  ");

do {
  console.readLine("Do you understand while loops?  ");
} while (response = "No");

1 Answer

Steven Parker
Steven Parker
229,732 Points
Steven Parker
Steven Parker
229,732 Points

An advantage of the "do" style loop is you don't need to call "readLine" twice. Just declare the variable before the loop.

Then, inside the loop, be sure to assign your variable with the result of the "readLine" call.

Finally, in the conditional clause of the "while", be sure to use a comparison operator ("==") instead of an assignment operator ("=").