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

Alicia Dunford
Alicia Dunford
330 Points
Posted by Alicia Dunford
Alicia Dunford
330 Points

Looping Task

I'm trying to write continual prompt to user in do while loop When previewing I get n,o errors, but when I check work I get " Bummer: Mae sure you're looping while the value stored in response is equal to No". Any help is appreciated.

Example.java 
// I have initialized a java.io.Console for you. It is in a variable named console.
console.readLine("Do you understand do while loops?");
String response = ("yes || no"); 
if (response == "no"); 
do {
  console.readLine("Do you understand do while loops?"); 
} while (response == "no");

1 Answer

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

Since the value of response is not changed inside the loop, the loop will never end. It should be assigned the value that is returned by the readLine call.

Also, asking the question before the loop begins is entirely unnecessary.

And note that the console instructions say to check for "No" (with a capital "N") which is different from "no" in lower case.

Alicia Dunford
Alicia Dunford
330 Points
Alicia Dunford
Alicia Dunford
330 Points

Thank you Steven. I really appreciate the assist.

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

Alicia Dunford — Glad to help. You can mark a question solved by choosing a "best answer".
And happy coding!