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Java Java Basics Perfecting the Prototype Looping until the value passes

Posted by Atul Varma
Atul Varma
4,285 Points

continually prompt the user in a do while loop. The loop should continue running as long as the response is No

Error: java.lang.RuntimeException: Too many loops attempted. Check your while condition()

Example.java 
// I have initialized a java.io.Console for you. It is in a variable named console.
String response;
do{
  console.readLine("Do you understand Do-While Loops?");
response = console.readLine("enter response");
console.printf("%s",response);
}while(response == "No");

1 Answer

Steve Hunter
Steve Hunter
57,712 Points

Hi Atul,

You're pretty much there with that. However, a couple of points; first, you don't need the second readLine - you have already captured user input with your first one so use that to assign the value entered into response. There's also no need to print the response out - the user know what thy've entered and, lastly, you should compare strings with the equals() method, not ==.

Putting that all together and you get something like:

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

I hope that helps,

Steve.

Atul Varma
Atul Varma
4,285 Points

Thanks a lot Steve.