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For example:
1 class rectangle2
2 {
3 int length, breadth, area, perimeter;
4 rectangle2 (int l, int b)
5 {
6 length=l;
7 breadth=b;
8 }
9 rectangle2 (rectangle2 r)
10 {
11 length = r.length;
12 breadth=r.breadth;
13 }
14 void cal()
15 {
16 area = length * breadth;
17 perimeter = 2*(length+breadth);
18 }
19
20 void display ()
21 {
22 System.out.println("Area of Rectangle:" + area);
23 System.out.println("Perimeter of Rectangle:" + perimeter);
24 }
25 public static void main(String[] args)
26 {
27 rectangle2 ob1 = new rectangle2 (5,4);
28
29 rectangle2 ob2 = new rectangle2(ob1);
30 ob1.cal ();
31 ob1.display();
32 ob2.cal ();
33 ob2.display();
34 }
35 }
Java Programming 121
