Could someone please review my code?  I am getting the following error:

Exception in thread “main” java.lang.NumberFormatException: For input string: “��2 ”
I have 4 classes plus a text file.  The EmployeeClass is the super class, followed by Salesman.java, Executive.java, and finally MainMethod.java.  Also attached is a word document with the project instructions.  Thanks in advanced.

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