第十一周作业

一、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. 

package psps;
public class ColaEmployee {
          String name;
          int month;
          public ColaEmployee() {
      }
          public ColaEmployee(String name, int month) {
          super();
          this.name = name;
          this.month = month;
}
          public double getSalary(int month) {
          return 0;
       }
}
 
package psps;
public class SalariedEmployee extends ColaEmployee {
          double monSalary;
          public SalariedEmployee() {
          super();
          // TODO Auto-generated constructor stub
    }
          public SalariedEmployee(String name, int month, double monSalary) {
           super(name, month);
          this.monSalary = monSalary;
}
           public double getSalary(int month) {
          if (super.month == month) {
          return monSalary + 100;
           } else {
          return monSalary;
               }
        }
}
 
package psps;
public class HourlyEmployee extends ColaEmployee {
           private int hourSalary;
          private int hourNum;
           public HourlyEmployee(String name, int month, int hourSalary, int hourNum) {
          super(name, month);
          this.hourSalary = hourSalary;
          this.hourNum = hourNum;
      }
          public double getSalary(int month) {
          if (super.month == month) {
          if (hourNum > 160) {
          return hourSalary * 160 + hourSalary * (hourNum - 160) * 1.5 + 100;
          } else {
           return hourSalary * hourNum + 100;
                }
           } else {
          if (hourNum > 160) {
           return hourSalary * 160 + hourSalary * (hourNum - 160) * 1.5;
            } else {
            return hourSalary * hourNum;
                 }
          }
     }
}
 
package psps;
public class SalesEmployee extends ColaEmployee {
           private int monthSales;
          private double royaltyRate;
          public SalesEmployee(String name, int month, int monthSales, double royaltyRate) {
           super(name, month);
            this.monthSales = monthSales;
           this.royaltyRate = royaltyRate;
                }
           public double getSalary(int month) {
           if (super.month == month) {
           return monthSales * royaltyRate + 100;
           } else {
            return monthSales * royaltyRate;
            }
     }
}
 
package psps;
public class Company {
public void getSalary(ColaEmployee c, int month) {
            System.out.println(c.name + "在" + month + "月的月薪为" + c.getSalary(month) + "元");
       }
}
 
package psps;
public class Text {
public static void main(String[] args) {
// TODO Auto-generated method stub
// 创建、初始化数组
           ColaEmployee[] cel = { new SalariedEmployee("salariedEmployee", 6, 26000), // name,month,月薪
           new HourlyEmployee("hourlyEmployee", 7, 200, 200), // name,month,时薪,小时数
            new SalesEmployee("salesEmployee", 6, 60000, 0.3)// name,month,月销售额，提成率
                              };
                             // 数组遍历
             for (int i = 0; i < cel.length; i++) {
            new Company().getSalary(cel[i], 7);
                   }
          }
}

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。