Thread: boolean method not checking to see if within given tolerance to be true.

public boolean checkAnswer(String response) {
		String Answer = "";
		double NumAnswer = Double.parseDouble(response);
		double CorrectAnswer = Double.parseDouble(super.getAnswer());
		if (NumAnswer == CorrectAnswer - tolerance
				|| NumAnswer == CorrectAnswer + tolerance
				|| NumAnswer == CorrectAnswer) {
			Answer = super.getAnswer();
		}
		return response.equals(Answer);
	}

This method is within a subclass for a math question. checkAnswer is supposed to take an answer in string form, converts it to a
double, get the correct answer in string form from the super class Question, converts that to a
double, and return true if NumAnswer is within the indicated tolerance to the CorrectAnswer. The tolerance i set up to be a private double and constructed to of them, one with the set tolerance of 0.01 and the other that accepts a double parameter.

The method works in returning true or false but I can't seem to understand why my if statement doesn't return true when the given string response falls within the tolerance. I have tried giving it an else statement as well but that also seems to not work.

You should follow Java coding conventions and begin variables with lowercase letters like answer, numAnswer etc: your code will be more readable that way.

If you are checking for a result *within* some tolerance shouldn't you be using < and > somewhere? The result should be bigger than some lower limit and less than some upper one.