$/**$

$*$ This is a skeleton file for your homework. Edit the sections marked TODO. You

$*$ may also edit the function "main" to test your code.

$*$

$*$ You must not change the declaration of any method. This will be true of every

$*$ skeleton file I give you.

$*$

$*$ For example, you will get zero points if you change the line

$*$

$*$