Program Of Class With Implementation & Within Class

#include<iostream.h>

#include<conio.h>

class swap

{

private:

int a,b;

public:

void  getdata(int x,int y)

{

a=x;

b=y;

}

void display();

};

void swap :: display()

{

int c;

c=a;

a=b;

b=c;

cout<<"\n First Number="<<a;

 cout<<"\n Second Number="<<b;

}

main()

{

clrscr();

swap s1;

int p,q;

cout<<"Enter First Number=";

cin>>p;

cout<<"Enter Second Number=";

cin>>q;

s1.getdata(p,q);

s1.display();

getch();

}