Math pythagoras method about triangle in java

/**
 * @author lautturi.com 
 * Java example: calculate the hypotenuse of triangle using pythagoras method
 */

import java.util.*;

public class Lautturi {
	public static void main(String[] args) {
		double adjacent = 3;
		double opposite = 4;
		double hypotenuse= Math.sqrt((adjacent*adjacent)+(opposite*opposite));
		System.out.println(hypotenuse);
	}
}

output:

5.0