SalariedEmployee.java

package com.atguigu.exer2;
/*
 * 定义SalariedEmployee类继承Employee类，
 * 实现按月计算工资的员工处理。该类包括：private成员变量monthlySalary；
实现父类的抽象方法earnings(),该方法返回monthlySalary值；
toString()方法输出员工类型信息及员工的name，number,birthday。
 */
public class SalariedEmployee extends Employee{
	private double monthlySalary;//月工资

	public SalariedEmployee(String name, int number, MyDate birthday) {
		super(name, number, birthday);
	}
	public SalariedEmployee(String name, int number, MyDate birthday,double monthlySalary) {
		super(name, number, birthday);
		this.monthlySalary = monthlySalary;
	}

	public double getMonthlySalary() {
		return monthlySalary;
	}

	public void setMonthlySalary(double monthlySalary) {
		this.monthlySalary = monthlySalary;
	}

	@Override
	public double earnings() {
		return monthlySalary;
	}
	
	public String toString(){
		return "SalariedEmployee[" + super.toString() + "]"; 
	}
}

PayrollSystem.java

package com.atguigu.exer2;

import java.util.Calendar;
import java.util.Scanner;

/*
 * 定义PayrollSystem类，创建Employee变量数组并初始化，该数组存放各类雇员对象的引用。
 * 利用循环结构遍历数组元素，输出各个对象的类型,name,number,birthday。
 * 当键盘输入本月月份值时，如果本月是某个Employee对象的生日，还要输出增加工资信息。

 */
public class PayrollSystem {
	public static void main(String[] args) {
		//方式一：
//		Scanner scanner = new Scanner(System.in);
//		System.out.println("请输入当月的月份：");
//		int month = scanner.nextInt();
		
		//方式二：
		Calendar calendar = Calendar.getInstance();
		int month = calendar.get(Calendar.MONTH);//获取当前的月份
//		System.out.println(month);//一月份：0
		
		
		Employee[] emps = new Employee[2];
		
		emps[0] = new SalariedEmployee("马森", 1002,new MyDate(1992, 2, 28),10000);
		emps[1] = new HourlyEmployee("潘雨生", 2001, new MyDate(1991, 1, 6),60,240);
		
		for(int i = 0;i < emps.length;i++){
			System.out.println(emps[i]);
			double salary = emps[i].earnings();
			System.out.println("月工资为：" + salary);
			
			if((month+1) == emps[i].getBirthday().getMonth()){
				System.out.println("生日快乐！奖励100元");
			}
			
		}
	}
}

MyData.java

package com.atguigu.exer2;
/*
 * MyDate类包含:
private成员变量year,month,day ；
toDateString()方法返回日期对应的字符串：xxxx年xx月xx日

 */
public class MyDate {
	private int year;
	private int month;
	private int day;
	
	
	public MyDate(int year, int month, int day) {
		super();
		this.year = year;
		this.month = month;
		this.day = day;
	}


	public int getYear() {
		return year;
	}


	public void setYear(int year) {
		this.year = year;
	}


	public int getMonth() {
		return month;
	}


	public void setMonth(int month) {
		this.month = month;
	}


	public int getDay() {
		return day;
	}


	public void setDay(int day) {
		this.day = day;
	}


	public String toDateString(){
		return year + "年" + month + "月" + day + "日";
	}
}

HourlyEmployee.java

package com.atguigu.exer2;
/*
 * 参照SalariedEmployee类定义HourlyEmployee类，实现按小时计算工资的员工处理。该类包括：
private成员变量wage和hour；
实现父类的抽象方法earnings(),该方法返回wage*hour值；
toString()方法输出员工类型信息及员工的name，number,birthday。

 */
public class HourlyEmployee extends Employee{
	private int wage;//每小时的工资
	private int hour;//月工作的小时数

	public HourlyEmployee(String name, int number, MyDate birthday) {
		super(name, number, birthday);
	}
	public HourlyEmployee(String name, int number, MyDate birthday,int wage,int hour) {
		super(name, number, birthday);
		this.wage = wage;
		this.hour = hour;
	}

	public int getWage() {
		return wage;
	}
	public void setWage(int wage) {
		this.wage = wage;
	}
	public int getHour() {
		return hour;
	}
	public void setHour(int hour) {
		this.hour = hour;
	}
	@Override
	public double earnings() {
		return wage * hour;
	}
	
	public String toString(){
		return "HourlyEmployee[" + super.toString() + "]"; 
	}
}

Employee.java

package com.atguigu.exer2;
/*
 * 定义一个Employee类，该类包含：
private成员变量name,number,birthday，其中birthday 为MyDate类的对象；
abstract方法earnings()；
toString()方法输出对象的name,number和birthday。

 * 
 */
public abstract class Employee {
	private String name;
	private int number;
	private MyDate birthday;
	
	
	public Employee(String name, int number, MyDate birthday) {
		super();
		this.name = name;
		this.number = number;
		this.birthday = birthday;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getNumber() {
		return number;
	}

	public void setNumber(int number) {
		this.number = number;
	}

	public MyDate getBirthday() {
		return birthday;
	}

	public void setBirthday(MyDate birthday) {
		this.birthday = birthday;
	}

	public abstract double earnings();

	@Override
	public String toString() {
		return "name=" + name + ", number=" + number + ", birthday=" + birthday.toDateString();
	}
	
	
	
}