Get the sign

static double signum(double d): Returns the sign of d; zero if the argument is zero, 1.0 if the argument is greater than zero, -1.0 if the argument is less than zero.
static float signum(float f): Returns the signum of f; zero if the argument is zero, 1.0f if the argument is greater than zero, -1.0f if the argument is less than zero.


public class Main {
  public static void main(String[] args) {

    System.out.println(Math.signum(1.2));
    System.out.println(Math.signum(-1.2));
  }
}

The output:


1.0
-1.0