Chapter 9.1, Problem 5STE

Program Plan Intro

Pointer in C++:

A pointer is a variable whose value will be another variable’s address. Generally, a pointer variable is declared as follows:

type *var-name;

Here, type is the pointer’s base type and var-name is the pointer variable name. The asterisk is used to designate a variable as a pointer.

Given Program:

//Include libraries

#include <iostream>

//Use namespace

using namespace std;

//Define main method

int main()

{

// Declare pointer variables

int *p1, *p2;

//Assign value

p1 = new int;

//Assign value

p2 = new int;

//Assign value

*p1 = 10;

//Assign value

*p2 = 20;

//Display value

cout << *p1 << " " << *p2 << endl;

//Assign value

*p1 = *p2;

//Display value

cout << *p1 << " " << *p2 << endl;

//Assign value

*p1 = 30;

//Display value

cout << *p1 << " " << *p2 << endl;

//Pause console window

system("pause");

//Return 0 value

return 0;

}