Remove digits from a number in Java [closed]

Answer 1

If you want to avoid the string conversion, you can find the high digit and subtract it.

public static void main(String[] args) {
    int x = 123456789;
    System.out.println("x = " + x);
    int hi = x, n = 0;
    while (hi > 9) {
        hi /= 10;
        ++n;
    }
    for (int i = 0; i < n; i++) hi *= 10;
    x -= hi;
    System.out.println("x with high digit removed = " + x);
}