Why is the console window closing immediately once displayed my output?

Question

I\'m studying C# by following the guides in MSDN.

Now, I just tried the Example 1 (here is the link to MSDN), and I\'ve encountered an i

Answer 1

Add the following before the return 0:

system("PAUSE");  

This prints a line to hit a key to close the window. It will keep the window up until you hit the enter key. I have my students add it to all their programs.