C++ Program to demonstrate usage of reference types

Program

#include<iostream>
using namespace std;
int main()
{
	int a = 10;
	int &b = a;
	cout << "Value of a:\t" << a << endl;
	cout << "Value of b:\t" << b << endl;
	a++;
	cout << "After change" << endl;
	cout << "Value of a:\t" << a << endl;
	cout << "Value of b:\t" << b << endl;
}

Output

Value of a:	10
Value of b:	10
After change
Value of a:	11
Value of b:	11