4、Cola公司的雇员分为以下若干类:(知识点:多态)
(1) ColaEmployee :这是所有员工总的父类,属性:员工的姓名,员工的生日月份。
- 方法:getSalary(int month) 根据参数月份来确定工资,如果该月员工过生日,则公司会额外奖励100 元。
(2) SalariedEmployee : ColaEmployee 的子类,拿固定工资的员工。
- 属性:月薪
(3) HourlyEmployee :ColaEmployee 的子类,按小时拿工资的员工,每月工作超出160 小时的部分按照1.5 倍工资发放。
- 属性:每小时的工资、每月工作的小时数
(4) SalesEmployee :ColaEmployee 的子类,销售人员,工资由月销售额和提成率决定。
- 属性:月销售额、提成率
(5) 定义一个类Company,在该类中写一个方法,调用该方法可以打印出某月某个员工的工资数额,写一个测试类TestCompany,在main方法,把若干各种类型的员工放在一个ColaEmployee 数组里,并单元出数组中每个员工当月的工资。
1 package Homework; 2 3 public class ColaEmployee { 4 String name; 5 int month; 6 7 public ColaEmployee() { 8 9 } 10 11 public ColaEmployee(String name, int month) { 12 super(); 13 this.name = name; 14 this.month = month; 15 } 16 17 public double getSalary(int month) { 18 return 0; 19 } 20 }
1 package Homework; 2 3 public class SalariedEmployee extends ColaEmployee { 4 double monSalary; 5 6 public SalariedEmployee() { 7 super(); 8 // TODO Auto-generated constructor stub 9 } 10 11 public SalariedEmployee(String name, int month, double monSalary) { 12 super(name, month); 13 this.monSalary = monSalary; 14 } 15 16 public double getSalary(int month) { 17 if (super.month == month) { 18 return monSalary + 100; 19 } else { 20 return monSalary; 21 } 22 } 23 24 }
1 package Homework; 2 3 public class HourlyEmployee extends ColaEmployee { 4 private int hourSalary; 5 private int hourNum; 6 public HourlyEmployee(String name,int month ,int hourSalary,int hourNum) { 7 super(month,name); 8 this.hourNum=hourNum; 9 this.hourSalary=hourSalary; 10 } 11 public double getSalary(int month) { 12 if(super.month==month) { 13 if(hourNum>160) { 14 return hourSalary*160+hourSalary*(hourNum-160)*1.5+100; 15 }else{ 16 return hourSalary+hourNum+100; 17 } 18 }else { 19 if(hourNum>160) { 20 return hourSalary*160+hourSalary*(hourNum-160)*1.5; 21 }else { 22 return hourSalary*hourNum; 23 } 24 } 25 } 26 }
1 package Homework; 2 3 public class TestCompany { 4 5 public static void main(String[] args) { 6 // TODO Auto-generated method stub 7 ColaEmployee[] cel = { new SalariedEmployee("Amy", 6, 44000), new HourlyEmployee("按小时拿工资的员工", 5, 100, 300), 8 new SalesEmployee("销售人员", 3, 7000000, 0.4) }; 9 for (int i = 0; i < cel.length; i++) { 10 new Company().getSalary(cel[i], 8); 11 } 12 } 13 14 }