Question

in C++

int x = 5

create a reference “a” equal to x and output a.

create a pointer (address type) “b” and output b

Answer 1

For your question i have given code and explained in the line by line comment.

Screenshots of codes are all attached, kindly follow all for better understanding.

code ..

#include<iostream>
using namespace std;

int main()
{
   int x=5; // declaring x=5;

   int &a=x; // creating refernce of x which will store memoey address of x

   cout<<a<<endl; // printing using reference

   int *b=&x; // creating pointer ot the x and assign address of x
               // as pointers point to a particular memory address
   cout<<*b<<endl; // printing using pointer

   return 0;
}

/* after running this program you will get
   5
   5
   as output
*/