Write a C++ program for prototype constructors.

#include <iostream.h>


#include <conio.h>


#include <string.h>


const int size = 10;


class country


{


       protected :


                          char name[size];


                          int nostate;


       public:


                          country();


                          void input()


                    {


                          cout<<"Enter Name of Country: ";


                          cin>>name;


                          cout<<"Total Number of States : ";


                          cin>>nostate;


                    }


                          void disp()


                    {


                          cout<<"Name of the Country : "<<name<<"\n";


                          cout<<"Total number of states : "<<nostate<<"\n";


                    }


 };


                        country::country ()


                 {


                        strcpy(name," ");


                        nostate = 0;


                        cout<<" Display the Values Initialised by the Constructors Country()\n";


                        cout<<"Name "<<name<<" NoState "<<nostate<<"\n";


                 }


                        class state: public country


                  {


                       protected :


                                           char name[size];


                                           double novill;


                       public:


                                           state();


                                           void input()


                                    {


                                           country:: input();


                                           cout<<"Enter Name of State : ";


                                           cin>>name;


                                           cout<<"Total Number of Villages : ";


                                           cin>>novill;


                                    }


                                           void disp()


                                   {


                                           country:: disp();


                                           cout<<"State : "<<name<<"\n";


                                           cout<<"Total Villages : "<<novill<<"\n";


                                   }


                   };


                              state:: state()


                     {


                              strcpy(name," ");


                              novill=0;


                             cout<<"Display the Values Initialised by the Constructors State\n";


                             cout<<"Name "<<name<<"NoVill "<<novill<<"\n";


                     }


                             void main( )


                        {


                               clrscr();


                               state sl;


                               sl.input();


                               sl.disp();


                               getch();


                       }