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Java Java Basics Perfecting the Prototype Looping until the value passes

1,592 Points

I have no clue

I need help writing a do while loop, ive watched the video but still dont understand!!

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

do {
  response = console.readLine("do you understand while loops?  ");


1 Answer

You're almost there again. We want to :

  1. Prompt the user and read their answer
  2. Check if their answer is "no"
  3. If it's no, ask them again
  4. Do all the above again and again while the response is still "no"

You've got 1, 2 and 4 covered, with a typo in your if condition (you have an extra opening parenthesis after "no"). You're just missing step #3. If the person answers "no", you need to show the question again, before you can read the answer (back at the beginning of the do block). So, fixing your mistake in your if declaration, and adding a statement to your if block (step #3), you get:

String response;

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

which should work. Hope this helps.