Read Data From Text File And Sum Numbers

Question

I want to read in data from a text file which is full of integers and have the program print those integers out to the screen while summing them. This shouldn\'t be hard, b

Answer 1

You never increment i, so the while loop continues beyond the end of the file. As for summing, do something like this.

static void addstuff(Scanner aScanner) {
        int sum = 0;

        while (aScanner.hasNextInt()) {
            sum += aScanner.nextInt();
        }

        System.out.println(sum);
}

This will run until hasNextInt() returns false, which occurs when the next item the scanner sees isn't an integer. This could be non-numeric input or the end of the file. This means you're no longer limited to 25 integers - it'll read as many as it can before stopping.