calculate area of rectangle using parameterised constructor in java

1import java.io.BufferedReader;
2import java.io.IOException;
3import java.io.InputStreamReader;
4class RectangleShape 
5{
6   int area, length, breadth;
7   // Parameterized constructor
8   RectangleShape(int l, int b) 
9   { 
10      length = l; 
11      breadth = b; 
12   } 
13   void getArea() 
14   { 
15      area = length * breadth; 
16      System.out.println("Area of rectangle : " + area); 
17   } 
18}
19public class FindArea 
20{
21   public static void main(String[] args) throws IOException
22   {
23      BufferedReader br = new BufferedReader(new InputStreamReader(System.in));        
24      int length, breadth; 
25      System.out.println("Please enter length : ");
26      String strLength = br.readLine(); 
27      length = Integer.parseInt(strLength);
28      System.out.println("Please enter breadth : ");
29      String strBreadth = br.readLine(); 
30      breadth = Integer.parseInt(strBreadth); 
31      RectangleShape rs = new RectangleShape(length, breadth); 
32      rs.getArea();
33   }
34}