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Java Java Basics Perfecting the Prototype Looping until the value passes

Posted by Omar Ahmed
Omar Ahmed
4,409 Points

I don't know how to finish this do while loop. Anyone know?

I posted my code based off another discussion post about this question, but the challenge still marked it incorrect.

The question was:

"Now continually prompt the user in a do while loop. The loop should continue running as long as the response is No. Don't forget to declare response outside of the do while loop."

Example.java 
// I have initialized a java.io.Console for you. It is in a variable named console.
String response;

do {

String response = console.readLine("Do you understand while loops? ");             
                   } while (response == "No");
Krzysztof Kucharzyk
seal-mask
.a{fill-rule:evenodd;}techdegree
Krzysztof Kucharzyk
Front End Web Development Techdegree Student 4,005 Points
Krzysztof Kucharzyk
.a{fill-rule:evenodd;}techdegree
Krzysztof Kucharzyk
Front End Web Development Techdegree Student 4,005 Points 
String response ="";
           do{
           response = console.readLine("Do you understand do while loops?");  // "yes" or "no" is stored in the response variable 
           } while (response.equalsIgnoreCase("no"));

//After the loop exits
console.printf("Because you said %s, you passed the test!",response);

1 Answer

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

Be aware that code shown in other questions can often have errors (even when posted as an "answer").

But if you use the "preview" button, the output gives you a clue:

JavaTester.java:123: error: variable response is already defined in method run()
String response = console.readLine("Do you understand while loops? ");
       ^
1 error

So your issue here is declaring "response" twice. Only the first line should have the "String" declaration in front.