Try Catch Statement Infinite Loop

Asked Nov 01 '15 at 23:05

Active Nov 02 '15 at 22:10

Viewed 29 times

I was working on come code for a physics lab to crunch standard deviation for my data (not part of the lab, I don't post my homework on stack overflow) just to make my life a bit easier. I wanted to handle errors that could occur if incorrect data was entered, but whenever I input incorrect data I just get an infinite loop with my error message printing out each iteration. Here is the prolematic code:

// Continue to ask the user for an integer until a correct input is
    // given
    boolean integerCheck = false;
    while (integerCheck == false) {
        try {
            numberOfPoints = input.nextInt();
            integerCheck = true;
        } catch(InputMismatchException mismatch) {
            System.out.println("Please enter a valid integer.");
        }
    }

I was wondering if anybody has seen this before, and how they fixed it? Thanks!

edited Nov 02 '15 at 22:10

Hristo Iliev

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asked Nov 01 '15 at 23:05

Nick P

Where do you set `integerCheck` back to `false`? – Oliver Charlesworth Nov 01 '15 at 23:08
Do you need to? Because if I am getting an infinite loop, then it is already set to false. I want it to keep asking the user for input until correct input is given. – Nick P Nov 01 '15 at 23:09
NickP your answer has already been given by @Tom – Balwinder Singh Nov 01 '15 at 23:12
2

@Tom you are completely correct. Should have checked around more! That solved my problem! – Nick P Nov 01 '15 at 23:14

Try Catch Statement Infinite Loop

0 Answers0