Write a program that swaps two numbers using pointers.

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#include<iostream.h>

#include<conio.h>

class pointer

{

int *a;

int *b;

public:

void swap();

};

void pointer::swap()

{

int i,j;

cout<<"enter the value of a "<<endl;

cin>>i;

cout<<"enter the value of b"<<endl;

cin>>j;

a=&i;

b=&j;

int *temp;

*temp=*a;

*a=*b;

*b=*temp;

cout<<"AFTER SWAPPING USING POINTERS"<<endl;

cout<<"a is "<<*a<<endl;

cout<<"b is "<<*b<<endl;

}

void main()

{

clrscr();

pointer obj;

obj.swap();

getch();

}

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        Output:-