Lab 6 - File I/O - Due: 29-Nov-2012

1.  Add int id to the class generate it sequentially from the last number used.
2.  Add public static void listAll() that will open the file and list all rows in a tabular format.
3.  Add public boolean save() to save the current row to the file.
4.  Add public boolean read(int id) to read from the file the row based on the id.