CISP401系列员工.java，是我工资单应用程序的一部分。

Posted 2021-02-25

import java.util.*;
 
public abstract class Employee implements Comparable<Employee> {
 
	// Data Objects (
		private EmployeeData emp;
		private static final double TAX_RATE = 0.15;
//  )
	// Constructors (
		public Employee() {
			emp = new EmployeeData();
		}
		public Employee(String f, String l) {
			emp = new EmployeeData(f, l);
		}
		public Employee(MyString f, MyString l) {
			emp = new EmployeeData(f, l);
		}
		public Employee(EmployeeData d) {
			emp = new EmployeeData(d);
		}
		public Employee(Employee e) {
			emp = new EmployeeData(e.emp);
		}
//  )
	// Accessors (
		public EmployeeData info() {
			return new EmployeeData(emp);
		}
		private EmployeeData get() { // private for use by compareTo
			return emp;
		}
		public int compareTo(Employee other) { // This is a overloaded method from the Comparable class for comparing two object (in my case Employee objects) in alphabetical order (which is the default behavior with compareTO when using strings).
			return (""+ emp.last + emp.first).compareTo(""+ other.get().last + other.get().first); // compareTo with String inputs automatically puts them in alphabetical order.
		}
//  )
	// Mutators (
		public abstract Number grossPay();
		public Number taxAmount() {
			return grossPay() .times (TAX_RATE);
		}
		public Number netPay() {
			return grossPay() .minus (taxAmount());
		}
		public MyString formattedName() {
			return new MyString("" + emp.last + ", " + emp.first);
		}
		public String toString() {
			return emp.toString();
		}
//  )
}