Demo Program #1 - to demonstrate opening a file for input and reading one piece of data from the file

Demo Program #2 - to demonstrate opening a file for input and reading several pieces of data from a file

Demo Program #3 - to demonstrate opening one file for output and writing several pieces of data to the file.

Demo Program #4 - to demonstrate reading data from one file and writing data to another file.

Demo Program #5 - to demonstrate reading data from a file, closing the file, and then writing to the same file.

Demo Program #6 - to demonstrate searching a file for a specific number.

Demo Program #7 - to demonstrate appending to an existing file.

Demo Program #8 - to demonstrate a sequential search (currently unavailable)

Demo Program #9 - to demonstrate inserting records in the middle of a sequential access file