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

Rodolfo Rivera
PLUS
Rodolfo Rivera
Courses Plus Student 203 Points

Do while loops

Don't know whats next

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 do while loops?");
String response;
do {
    if (response.equalsIgnoreCase("No");

1 Answer

Ben Reynolds
Ben Reynolds
35,170 Points
  1. Remove your second line that just says "String response;", the instruction that says "Don't forget to declare response outside of the do while loop" is already taken care of by your first line of code where you've declared the variable with the readline statement.

  2. The if statement is what's throwing off the loop. In a Do/While, the condition goes in the "while" part instead, here's the basic syntax:

do {
    // loop code goes here, will always run at least once since it's in the "do" block
} while(ConditionGoesHere); // after the code in the "do" block runs once, this condition is checked to decide if the loop should run again