1    package shapes;
2    
3    public class ShapesThing {
4    
5        public static void main(String[] args){
6            SSquare square = new SSquare(400);
7                System.out.println("square = " + square.toString());
8                System.out.println("area of square = " + square.area());
9                System.out.println("perimeter = " + square.perimeter());
10               System.out.println("diagonal = " + square.diagonal());
11   
12           SCircle disk = square.inscribingCircle();
13               System.out.println("disk = " + disk.toString());
14               System.out.println("area = " + disk.area());
15               System.out.println("perimeter = " + disk.perimeter());
16   
17           SSquare diamond = disk.inscribingSquare();
18               System.out.println("diamond = " + diamond.toString());
19               System.out.println("area = " + diamond.area());
20       }
21   }
22