Write a program to generate a class named Person (with data numbers: Name, Age) and compare the age of two persons and show the eldest one, using this pointer.

Figure 9

Coding:

#include<iostream.h>

#include<stdio.h>

#include<conio.h>

class Person

{

   char Name[20];

   int Age;

public:

  void getData()

  {

    cout<<"Enter Person Name:";

    gets(Name);

    cout<<"Enter Person Age:";

    cin>>Age;

  }

  void putData()

  {

   cout<<"\n\nDetails About Eldest Person as follows:";

   cout<<"\nName="<<Name<<"\nAge="<<Age;

  }

  Person &Compare(Person &p1)

  {

   if(p1.Age>this->Age)

   return p1;

   return *this;

  }

};

void main()

{

  clrscr(); Person x,y,z;

  x.getData();

  y.getData();

  z=x.Compare(y);

  z.putData();

  getch();

}

Output: