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 Steven Hanna
Steven Hanna
203 Points

What is wrong? When I compile this code in the workspace it works fine. I copy and paste and it wont work in quiz.

I created a file in workspaces called If.java and wrote this code: import java.io.Console;

public class If {

    public static void main(String[] args) {
        Console console = System.console();
      String noun;
      boolean isInvalidWord;
      do {
        noun = console.readLine("Do you understand do while loops?  ");
        isInvalidWord = (noun.equalsIgnoreCase("no"));
      if (isInvalidWord) {
        console.printf("That language is not allowed.  Try again.  \n\n");
        }
      } while(isInvalidWord);


    }

}

// It compiles and runs in workspaces but it won't pass in the quiz //

1 Answer

jacobproffer
jacobproffer
24,604 Points
jacobproffer
jacobproffer
24,604 Points

Hey Steven,

Are you writing this code in your own text editor? For this challenge, you do not need to set-up the basics of a Java program. You can begin with the response variable.

I've tried to simply the program below with comments.

// Initialize response
String response;

// Begin loop
do {
    // Assign response variable to prompt
    response = console.readLine("Do you understand do while loops?");
} while(response.equalsIgnoreCase("No")); // Prompt user while response equals, "No."

// Provide a success message to user
console.printf("Because you said %s, you passed the test!", response);