Chapter 4, Section 11: Simple File Input and Output
Review Questions: 4.28, 4.29, 4.30
Chapter 13: File Input and Output
Questions: 13.1, 13.2, 13.3, 13.5

Demonstrate how to properly open a file for input/output?
How do you test if a file failed to open?
Why are files closed?
Why is it a bad idea not to check for file open success?
Demonstrate how to write xxx  to a file.
Demonstrate how to read xxxg from a file.