New to Java

Hi Folks,

In this code ,

package flowcontrol;

public class Fc12 {
	public static void main(String[] args) {
		if(-0.0==0)
		{
			System.out.println("HIII");
		}
	}
}
O/P : HIII

Why is the negative decimal zero equal to 0 ? Also even negative decimal zero equal to positive decimal zero ?

Can someone give me some pointers.

Thank you for your consideration.