Stop/pause program after asking for input

Hello, I just started learning C using the guide on this page and I found a little problem I haven't been able to fix by myself.

On some examples used on the guide, the program ask for an input and should give you a printf in return. However, after you enter the input, it will finish the program without giving you time to see the answer. What do I use to make it stop/pause in order to be able to read the answer?

An example of this is:

Code:

#include <stdio.h>

int main()
{
    int this_is_a_number;


    printf( "Please enter a number: " );
    scanf( "%d", &this_is_a_number );
    printf( "You entered %d", this_is_a_number );
    getchar();
    return 0;
}

If you enter, say, 4,then press 'enter', the input buffer contains:
4\n

The newline remains in the buffer, and is devoured by your "getchar()", leading it to seem like it was skipped.
To verify this, put a second "getchar()" after the first one and see if the window remains open.

FAQ > Stop my Windows Console from disappearing everytime I run my program? - Cprogramming.com