ALGORITHM

1. Start the process
2. Invoke the class with pointer
3. Assign ptr<-&obj 4. Call the ptr->getdata()
a. Get the roll no and name of the student
5. Call the ptr->display()
a. Print the roll no and name
6. Stop the process

PROGRAM

#include
	#include

	class  base 
	{
		private: int x;
			float y;
		public : virtual void getdata( );
			virtual void display( );
	};
	class dev : public base
	{
		private:  int roll;
			 char name[20];
		public : void getdata( );
			void  display( );
	};	
	void base :: getdata( )  {  }
	void base :: display( )   {  }
			
	void dev :: getdata( )
	{
		cout<<” Enter Roll of  the Student “;
		cin>> roll;
		cout<<” Enter name of  the student”;
		cin>>name;
        }
	void dev :: display( )
	{
		cout<<”Name is :”< getdata( );
		ptr -> display( );
		getch( );
	}

OUTPUT

Enter the roll no of the student: 111
Enter the name of the student : Kapil Dev

Name is : Kapil Dev
Roll no is : 111

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