perimeter of rhombus in java

1import java.util.Scanner;
2public class PerimeterOfRhombus
3{
4   public static void main(String[] args)
5   {
6      Scanner sc = new Scanner(System.in);
7      System.out.println("Please enter side of rhombus: ");
8      double side = sc.nextDouble();
9      double perimeter = 4 * side;
10      System.out.println("Perimeter of Rhombus is: " + perimeter);
11      sc.close();
12   }
13}