Lab4Rectangledemo.java

import java.util.Scanner;
 public class RectangleDemo
 {
     public static void main(String[] args)
     {
         Scanner input = new Scanner(System.in);
         System.out.println("Please Enter the Length: ");
         double l = input.nextDouble();
         System.out.println("Please Enter the Width: ");
         double w = input.nextDouble();
         Rectangle rectangle = new Rectangle(l,w);
         System.out.println("The Area is : " + rectangle.area() + " square cm");
         System.out.println("The Length of the Rectangle is : " + rectangle.getLength() + " cm");
         System.out.println("Please enter the new Length of the Rectangle");

          rectangle.setLength(input.nextDouble());
         System.out.println("The new Length of the Rectangle is : " + rectangle.getLength() + " cm");
         System.out.println("The new Area of the Rectangle is: " + rectangle.area());

      }
 }