CS 143 Sp12 Week 01 Assignment

Our company deals with people. Every Person has these fields:

• givenName (String)
• surname (String)
• phoneNumber (String)
• streetAddress (String)
• city (String)
• state (string)
• zip (int)
• zipPlus4(int)

The Person class requires some methods:

• A 2-arg constructor that takes givenName and surname, and creates a person, filling all other String fields with “unknown”, and 99999 for zip, and 9999 for zipPlus4.
• An 8-arg constructor that takes all eight fields
• A toString() methods that returns a multi-line string suitable for printing on an envelope for mailing.
• gets and sets for all fields.
• A .equals(Person other) methods that returns true if both givenName and Surname match, false otherwise.

In addition, we have Customers. Each Customer is a Person. In addition, a customer has these extra fields:

• customerID (int)
• creditLimit (double)
• balanceOwed (double)

The Customer class needs these methods:

• A 3-arg constructor (surname, givenName, customerID) that creates a new customer with a zero balanceOwed.
• A charge(double amount) method that adds amount to the current balanceOwed
• A credit(double amount) method that credits a customer’s account. It should not directly access the balanceOwed field, but use the charge() method with a negative number.
• gets and sets for creditLimit.
• gets for customerID and balanceOwed, but no sets for them. (all changes should be trackable through the single credit() method.)
• A different equals method that compares customerIDs.

We also have employees. The Employee class needs these fields:

• salaried (boolean)
• wages (double), which will be interpreted as hourly for salaried==false, and annual salary otherwise.
• employeeID (integer)

Employee will need methods:

• A 4-arg constructor that uses givenName, surname, salaried, and employeeID.
• gets and sets for wages and salaried (but instead of a get for a Boolean, use an isSalaried()), but only a get for employeeID.
• An equals method that compares employeeIDs.

Week01.java will be a tester program. It should:

• Have an ArrayList of Customer
• Have an ArrayList of Employee
• A GUI interface (Preferably built with Window Builder) that has
  • Fields for all possible fields for both customers and employees
  • three buttons:
  • Add Customer (with appropriate fields) For extra credit, warn if same ID already there.
  • Add Employee (ditto) For extra credit, warn if same ID already there.
  • Display All This should list out first customers, then employees, using console output.

Be sure to implement all methods exactly as specified, because I may hook your classes up to my own tester program! You will have these classes, each in its own file:

• Person.java
• Customer.java
• Employee.java
• Week01.java

Every .java file should have as its first line a comment with your name in it.

When your program runs, your name should appear in the title bar of the window.