Here are the requirements I was given...

Program Purpose

The goal of the program is to count the occurrences of all words in a file, and write this count into a new file.

Requirements

• The input file will contain 1 word per line (lines will be terminated by the newline character), and the file will contain an arbitrary number or lines.
• The file will be terminated by an end of file character.
• The word count must be case insensitive, as there may be varying case throughout the file.
• The output file must write each word once, and include the number of occurrences of that word on the same line.
• The lines in the output file must be sorted in ascending order.

Sample Input:

Chicago
Paris
chicago
London
red
blue
Green
Red
REd
london

Sample output:

blue;1
Chicago;2
Green;1
London;2
Paris;1
red;3

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