Online Java ulp() function

public class Main { public static void main(String[] args) { double a = 8.1; // Input positive double value, Output ulp(a) System.out.println(Math.ulp(a)); double b = -37.1; // Input negative double value, Output ulp(-a)==ulp(a) System.out.println(Math.ulp(b)); float c = -1.0f / 0; // Input negative infinity, Output positive infinity System.out.println(Math.ulp(c)); double d = 0.0; // Input zero, Output Double.MIN_VALUE System.out.println(Math.ulp(d)); double e = Double.MAX_VALUE ; // Input Double.MAX_VALUE, Output 2 power of 971 System.out.println(Math.ulp(e)); float f = Float.MAX_VALUE ; // Input Float.MAX_VALUE, Output 2 power of 104 System.out.println(Math.ulp(f)); } }