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Java Java Basics Perfecting the Prototype Looping until the value passes

Vincent Karcz
Vincent Karcz
307 Points
Posted by Vincent Karcz
Vincent Karcz
307 Points

I don't understand do while loops enough to do this

"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 = console.readLine("Do you understand do while loops?"  );
   String response;
      do {
        response = yes;
          if (no); 
        }
} while (yes);

2 Answers

Tom Achki
Tom Achki
3,680 Points
Tom Achki
Tom Achki
3,680 Points 
do {
// Something
} while(condition)

In your case , it will look like this:

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

So we are continually prompting user for input as long as the response is "No". You do not need to add if statements in this example. The loop will stop when user says something other than "No".

Vincent Karcz
Vincent Karcz
307 Points
Vincent Karcz
Vincent Karcz
307 Points

After I entered that code, I received an error saying " java.lang.RuntimeException: Too many loops attempted! Check your while condition. ()"

Tom Achki
Tom Achki
3,680 Points
Tom Achki
Tom Achki
3,680 Points

I have just tried and it works perfectly fine for me. Check for syntax errors or copy my code(It works for me) directly. Also, try refreshing the page and see if it works.