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Java Java Basics Perfecting the Prototype Looping until the value passes

Posted by Francis Stallings
Francis Stallings
2,132 Points

Prompt the user with the question "Do you understand do while loops?" Store the result in a new String variable named re

I've been working on this question for hours and I can't figure out it out. Do I need to supply a "yes" and "no" somewhere? An "if" variable? A boolean?

Example.java 
// I have initialized a java.io.Console for you. It is in a variable named console.
String response;
String response = console.readLine("Do you understsand while loops?" );
do {
  response = console.readLine("Do you understsand while loops?"); 
  if (response.equals("no"));
}
  while(response.equalsIgnoreCase("no"));

3 Answers

Marina Alenskaja
Marina Alenskaja
9,320 Points
Marina Alenskaja
Marina Alenskaja
9,320 Points

Hi Francis!

You are almost right :-) You need to prompt the user, by calling console.readLine() and pass the question to the user as the argument. This way, the user can reply to your question and the reply will be saved in the response variable.

Try this:

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

Francis Stallings
Francis Stallings
2,132 Points
Francis Stallings
Francis Stallings
2,132 Points

Thank you , but I tried this already and it didn't work. I tried it again and its still not passing. I don't understand what calling the console.readLine means exactly. I've been trying to type in things as I see them in the video and nothing passes.

Marina Alenskaja
Marina Alenskaja
9,320 Points
Marina Alenskaja
Marina Alenskaja
9,320 Points

Are you sure you spelled everything correctly? I can see there is a spelling mistake in the code you first posted, which could give an error. And what error are you getting? Try to copy the exact code I've written, and if it doesn't work tell me what the error message is :)

Francis Stallings
Francis Stallings
2,132 Points
Francis Stallings
Francis Stallings
2,132 Points

Thank you, I did it and it passed but I don't know why. I don't see any difference from what I typed in and when I copied pasted. I was getting an error saying I needed to call the console.readLine.