separating these into nice java classes
You will be writing a multiclass user management system using the java. Create a program that implements a minimum of four classes. The classes must include: 1. Employee Class with the attributes of Employee ID, First Name, Middle Initial, Last Name, Date of Employment. 2. EmployeeType Class that has two instances of EmployeeType objects: salaried and hourly. Each object will have methods that calculates employees payroll( you may use attributes from Assignment 2), but you must handle the calculation in a method. Assume that you have hourly employees who work overtime and if the hours they worked over 40 hours, they must be paid one-and-one- half times the regular rate of pay for all hours worked over 4o hours. Both federal and state tax must be calculated 3. Address Class that handles address of the employee: attributes include street address, city, state, zip code, 4. Contact Class - The Contact class will have email and phone attributes, you may also create an instance of Address object. The above four classes are required, but you can add more if you want to make your program a realistic application of the real world. Note Be Careful. 1. Do not accept negative number for any of the items entered. 2. The program must be able to register a minimum of three employees at a time. 3. Registered employees can be looked up using their employee id(3 points Extra credit, you are not permitted to use Array) 4. Use different data types (int, string, double, boolean, char) 5. Do not use array in this program - if you use array