Program to demonstrate 'this' keyword

/* Program to demonstrate  'this' keyword */

class Rectangle
{
    int length;
    int width;

    //  use 'this' to resolve name-space collisions.
    Rectangle(int length ,int width)
    {       
        this.length = length ;
        this.width = width;
    }

   
    // compute and return Area of a Rectangle
    int area()
    {
        return length*width;
    }
   
}


class RectangleDemo8
{
    public static void main(String args[])
    {
        // create Rectangles
        Rectangle rect1 = new Rectangle(20,15);
        Rectangle rect2 = new Rectangle(25,17);
       
        int a;
   
       
        // get area of first rectangle
        a = rect1.area();         
        System.out.println("Area of First Rectangle(length:"+rect1.length+", width:"+rect1.width+") is: "+a);
       
        // get area of second rectangle
        a= rect2.area();         
        System.out.println("Area of Second Rectangle(length:"+rect2.length+", width:"+rect2.width+") is: "+a);

       
    }
}