reference.cpp

#include<iostream>
using namespace std;
int main()
//*****REFERENCE VARIABLES*******
//{
//
//	float x=455;
//	float &y=x;
//	cout<<x<<endl;
//	cout<<y<<endl;
//	return 0 ;
//}

//********** same output 
//{
//int a=45;
//float b=45.46;
//cout<<"the values of a is"<<(float)a<<endl;
//cout<<"the values of a is"<<(float)a<<endl;
//cout <<"the value of b is"<<(int)b<<endl;
//cout <<"the value of b is"<<(int)b<<endl;
//return 0;
//}

//***********
//{
//int a=45;
//float b=45.46;
//cout<<"the values of a is"<<(float)a<<endl;
//cout<<"the values of a is"<<(float)a<<endl;
//cout <<"the value of b is"<<(int)b<<endl;
//cout <<"the value of b is"<<(int)b<<endl;
//int c=int(b);
//cout<<"the expression is"<<a+b;
//cout<<"the expression is"<<a+int(b);
//cout<<"the expression is"<<a+(int)b;
//return 0;
//}
//**********************************************
{
	const int a=3;
	cout<<"the value of a was:"<<a<<endl;
	a=45;
	cout<<"the value of a is:"<<a<<endl;
	return 0;
}