CECS 277
LAB ASSIGNMENT #1
Assigned date: 8/27
Due date: 9/8
40 points

Payroll System Using Inheritance and Polymorphism

1. Implement an interface called EmployeeInfo with the following constant variables:

• FACULTY_MONTHLY_SALARY = 5000.00
• STAFF_MONTHLY_HOURS_WORKED = 160

2. Implement an abstract class Employee with the following requirements:

• Attributes
• last name (String)
• first name (String)
• ID number (String)
• Sex - M or F
• Birth date (Date) - Use the java Date class - Constructor Date(int yy, int mm, int dd)
• Default argument constructor and argument constructors.
• Public methods
• toString - returning a string with the following format:
  ID Employee number :_________
  Employee name: __________
  Birth date: _______
• get and set methods
• abstract method monthlyEarning that returns the monthly earning.

3. Implement a class called Staff extending from the class Employee with the following requirements:

• Attribute
• Hourly rate
• Default argument and argument contructors
• Public methods
• get and set
• The method monthlyEarning returns monthly salary (hourly rate times 160)
• toString - returning a string with the following format:
  ID Employee number :_________
  Employee name: __________
  Birth date: _______
  Full Time
  Monthly Salary: _________

Implelment a class Education with the following requirements:

• Attributes
• Degree (MS or PhD )
• Major (Engineering, Chemistry, English, etc ... )
• Research (number of researches)
• Default argument and argument constructors.
• Public methods
• get and set

Implement a class Faculty extending from the class Employee with the following requirements:

• Attributes
• Level
  "AS": assistant professor
  "AO": associate professor
  "FU": professor
• Education object
• Default argument and argument constructor
• Public methods
• get and set
• The method monthlyEarning returns monthly salary based on the faculty's level.
  AS - faculty monthly salary
  AO - 1.2 times faculty monthly salary
  FU - 1.4 times faculty monthly salary
• toString - returning a string with the following format:
  ID Employee number :_________
  Employee name: __________
  Birth date: _______
  XXXXX Professor where  XXXXX can be Assistant, Associate or Full
  Monthly Salary: _________

Implement a class called Partime extending from the class Staff with the following requirements:

• Attributes
• Hours worked per week
• Default argument and argument constructors
• Public methods
• set and get
• The method monthlyEarning returns monthly salary which hourly rate multiplied hours worked per week multiplied four.
• toString - returning a string with the following format:
  ID Employee number :_________
  Employee name: __________
  Birth date: _______
  Hours works per month: ______
  Monthly Salary: _________

Implement a test driver program that creates a one-dimensional array of class Employee to store the objects Staff, Faculty and Partime.

Using polymorphism, display the following outputs:

a. Employee information using the method toString

• Staff
• Faculty
• Part-time

b. Total monthly salary for all the part-time staff .
c. Total monthly salary for all employees.
de. Display all employee information in ascending order by employee id.
e. Display all employee information in descending order by last name.
f. Duplicate a Faculty object. Test the duplication.

Test Data

Staff

1. Last name:  Allen
   First name: Paita
   ID: 123
   Sex: M
   Birth date: 2/23/59
   Hourly rate: $50.00
2. Last name: Zapata
   First Name: Steven
   ID: 456
   Sex: F
   Birth date: 7/12/64
   Hourly rate: $35.00
3. Last name:Rios
   First name:Enrique
   ID: 789
   Sex: M
   Birth date: 6/2/70
   Hourly rate: $40.00

Faculty

1. Last name: Johnson
   First name: Anne
   ID: 243
   Sex: F
   Birth date: 4/27/62
   Level: Full
   Degree: Ph.D
   Major: Engineering
   Reseach: 3
2. Last name: Bouris
   First name: William
   ID: 791
   Sex: F
   Birth date: 3/14/75
   Level: Associate
   Degree: Ph.D
   Major: English
   Reseach: 1
   
3. Last name: Andrade
   First name: Christopher
   ID: 623
   Sex: F
   Birth date: 5/22/80
   Level: Assistant
   Degree: MS
   Major: Physical Education
   Research: 0

Part-time

1. Last name: Guzman
   First name: Augusto
   ID: 455
   Sex: F
   Birth date: 8/10/77
   Hourly rate: $35.00
   Hours worked per week: 30
   
2. Last name: Depirro
   First name: Martin
   ID: 678
   Sex: F
   Birth date: 9/15/87
   Hourly rate: $30.00
   Hours worked per week:15
3. Last name: Aldaco
   First name: Marque
   ID: 945
   Sex: M
   Birth date: 11/24/88
   Hourly rate: $20.00
   Hours worked per week: 35

GRADING

• Be ready to demonstrate the result and answer some questions about the lab assignment.
• Turn in the following documents to the instructor:
  1. The main method
  2. Code on how to clone the faculty
  3. Code to display all employee information in ascending order by last name.
  4. Run-time output
  5. UML diagram