Whenyou begin writing larger programs and splitting them up into separately compiled portions,you will have occasion to use some statements common to each of the portions. It would be to your advantage to make a separate file containing the statements and use the #include to insert it into each of the files. If you want to change any file, you will be assured of having all of the common statements agree. This is getting a little ahead of ourselves but you now have an idea how the #include directive can be used.