Question

Create an integer variable call r and an integer pointer variable called ptr. Now use pointer logic/code to print the value of r using the pointer variable ptr.

Answer 1

#include<iostream>
using namespace std;
/*
an integer variable call r
and an integer pointer variable called ptr.
Now use pointer logic/code to print the value of r
using the pointer variable ptr.
*/
//This is c++ code
int main()
{
   int r = 10;
   int *ptr;
   //assign address of r to ptr
   ptr = &r;
   cout << "The value of ptr -> " << *ptr << endl;
   //to hold the output screen
   system("pause");
   return 0;
}

//output

#include<stdio.h>
#include<stdlib.h>
/*
an integer variable call r
and an integer pointer variable called ptr.
Now use pointer logic/code to print the value of r
using the pointer variable ptr.
*/
//This is c code
int main()
{
   int r = 10;
   int *ptr;
   //assign address of r to ptr
   ptr = &r;
   printf("The value of ptr -> %d\n", *ptr);
   //to hold the output screen
   system("pause");
   return 0;
}

//output

//if you need any help regarding this solution ............. please leave a comment .............. thanks