Gaddis, Tony. Starting Out with Java 4th edition.
EmployeeMap Class Create an Employee class that stores anemployee’s ID number and name. Then create an EmployeeMap classthat allows you to add Employee objects and look them up by theirID numbers. The EmployeeMap class should use a Map object to map IDnumbers to Employee objects. Create an application to demonstratethe classes.
Refer to Program Challenge #3 found on page 1193 of the text.Which is the program above this sentence.
Use the program specifications as a basis for the project butinclude the following modifications:
Use a JOptionPane to prompt the user for an input file name. Ifthe
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