Static Variables and Methods

class Rect

{

        int length;

        int breadth;

        int area;

        static int count;

        Rect(int a,int b)

        {

                length = a;

                breadth = b;

                count++;

        }

        Rect()

        {

                length = 0;

                breadth = 0;

                count++;

        }

        void calc()

        {

                area = length * breadth;

        }

        void display()

        {

                System.out.println("Length : " + length);

                System.out.println("Breadth : " + breadth);

                System.out.println("Area : " + area);

        }

}

class Rect1

{

        public static void main(String args[])

        {

                System.out.println("No of object : " + Rect.count);

                Rect r1 = new Rect(10,20);

                r1.calc();

                System.out.println("No of object : " + Rect.count);

                Rect r2 = new Rect();

                r2.calc();

                System.out.println("No of object : " + Rect.count);

                r1.display();

                r2.display();

        }

}

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