Program to demonstrate Method returning a value

/* Program to demonstrate returning a value */

class Rectangle
{
    int length;
    int width;

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


class RectangleDemo3
{
    public static void main(String args[])
    {
        Rectangle rect1 = new Rectangle();
        Rectangle rect2 = new Rectangle();
        int a;
   
        //assign values to rect1's instance variables
        rect1.length= 20;
        rect1.width=15;

        //assign different values to rect2's instance variables
        rect2.length= 25;
        rect2.width=17;

        System.out.print(" First Recangle (length : "+rect1.length+" , width : "+rect1.width+") --->");
        a = rect1.area();          // get area of first rectangle
        System.out.println(" Area is : "+a);
       
        System.out.print(" Second Recangle (length : "+rect2.length+" , width : "+rect2.width+") --->");
        a= rect2.area();          // get area of second rectangle
        System.out.println(" Area is : "+a);
    }
}