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Java Java Basics Perfecting the Prototype Looping until the value passes

Benjamin Cha
Benjamin Cha
2,761 Points
Posted by Benjamin Cha
Benjamin Cha
2,761 Points

How to fix this prompt-related project?

I must get this program to work, but there's one compile error that's causing it to malfunction. What way should I fix this...

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

1 Answer

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

The result suggests that you use the "preview" button to see the errors. When you do, you get this:

JavaTester.java:123: error: cannot find symbol
  booleanisNotUnderstanding = (response.equalsIgnoreCase("no"));
  ^
  symbol:   variable booleanisNotUnderstanding
  location: class JavaTester
1 error

This refers to the variable on line 5 of the code, which on line 2 was declared with the name "isNotUnderstanding". The type of variable is indeed "boolean", but that keyword is not part of the name.

Changing the name on line 5 to "isNotUnderstanding" will remove the compile error.

Benjamin Cha
Benjamin Cha
2,761 Points
Benjamin Cha
Benjamin Cha
2,761 Points

Thanks! I didn't know that there was an error on the 5th line, but I saw that I accidentally added "boolean" on to the isNotUnderstanding variable and deleted it. It worked after fixing it! :)

Thank you!