C++: Pointers

What a Java Programmer should know about Pointers

Pointers and Arrays

Accessing Memory Locations with Pointers

C++ operators for Accessing Memory

Operator	Name	Function
`&`	address operator	provides the memory address of a given variable
*	dereference operator	provides the value stored in a specfic memory address

Download and run this Pointer Demo Code

#include 
 

using namespace std;

int main()
{
 int x = 25;
 cout << "\n the value of x is " << x <<endl;
 cout<< "\n the address of x is : "<< &x <<endl;
//now lets declare a points

int *pointsToX;
pointsToX = &x;
cout<< "\n pointsTox : " << pointsToX <<endl;
cout<< "\n Now let's use the pointer to get the value it 'points' to " <<endl;
cout<< "\npointsTox points to " << *pointsToX <<endl;
//try to uncomment the next line...watch what happens
//  pointsToX = x;
 

    return 0;
}

You can see the output that this program on my computer. Although the address of x may be different on your computer, you should get ouput similar to that below.