Program for Single Inheritance

class A

{

            int len,bre;

            void getdata(int x,int y)

            {

            len=x;

            bre=y;

            }

            void printdata()

            {

            System.out.println("length="+len);

            System.out.println("Breadth="+bre);

            }

}

class B extends A

{

            int wid;

            void putdata(int x,int y,int z)

            {

            len=x;

            bre=y;

            wid=z;

            }

            void printdata1()

            {

            printdata();

            System.out.println("Width="+wid);

            }

            void calarea()

            {

            int area=len*bre*wid;

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

            }

}

class si

{

            public static void main(String[] args)

            {

            B obj=new B();

            obj.putdata(10,20,30);

            obj.printdata1();

            obj.calarea();

            }

}