ex2.java

class Rectangle {
    public int width;
    public int height;

    public static void main(String[] agrs){
        Rectangle myrect = new Rectangle();
        myrect.setWidth(50);
        myrect.setWidth(40);
        System.out.println("myRect's area is " + myrect.area());

    }

     Rectangle(){
        this.width = 0;
        this.height = 0;

    }

    public void setHeight(int height) {
        this.height = height;
    }

    public void setWidth(int width) {
        this.width = width;
    }

    public int area(){
        return this.width * this.height;
    }
}