Java: Check if two double values match on specific no of decimal places

Question

Comparing those two values shall result in a \"true\":

53.9173333333333  53.9173

Answer 1

here is the simple example if you still need this :)

public static boolean areEqualByThreeDecimalPlaces(double a, double b) {

    a = a * 1000;

    b = b * 1000;

    int a1 = (int) a;

    int b1 = (int) b;

    if (a1 == b1) {
        System.out.println("it works");
        return true;
    }

    else
        System.out.println("it doesn't work");
    return false;