Java Program to Find Area and Perimeter of a Rectangle

import java.io.*;

class Rectangle
{
    int length;
    int width;
    BufferedReader br;

    public void readAttributes() throws IOException  			//reading length and width
    {
        System.out.println("Enter the dimensions of the rectangle.");
        br=new BufferedReader(new InputStreamReader(System.in));
        System.out.print("Enter the length:");
        length=Integer.parseInt(br.readLine());
        System.out.print("Enter the width:");
        width=Integer.parseInt(br.readLine());
    }

    public void getArea() 							//calculating area
    {
        System.out.println("Area of rectangle is: "+ (length*width));
    }


    public void getPerimeter() 						//calculating perimeter
    {
        System.out.println("Perimeter of rectangle is: "+ 2*(length+width));
    }

    public static void main(String args[]) throws IOException		//main method
    {
        Rectangle r=new Rectangle();					//object for the class
        r.readAttributes();						//calling three methods
        r.getArea();
        r.getPerimeter();
    }
}

 OUTPUT:

Enter the dimensions of the rectangle.
Enter the length:10
Enter the width:20
Area of rectangle is: 200
Perimeter of rectangle is: 60