22. Program of constructors

import java.util.*;

class demo

{

            int i;

            demo()

            {

                        i=0;

            }

            demo(int a)

            {

                        i=a;

                       

            }

            void show()

            {

                        System.out.println("i="+i);

            }

}

class overload

{

            public static void main(String args[])

            {

                        demo ob1=new demo();

                        ob1.show();

                        demo ob2=new demo(2);

                        ob2.show();

            }

}