6.14作业十五周作业（PPT第七章4,5题）

Cola公司的雇员分为以下若干类：(知识点：多态) [必做
题]
• 4.1 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。
• 4.2 SalariedEmployee ： ColaEmployee 的子类，拿固定工
资的员工。属性：月薪
课后作业
• 4.3 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
• 4.4 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
• 4.5 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。

package Cola;

public class ColaEmployee {
    protected String name;
    protected int month;
    private int birthday;
    
    public String getName() {
     return name;
 }
 public void setName(String name) {
     this.name = name;
 }
 public int getMonth() {
     return month;
 }
 public void setMonth(int month) {
     this.month = month;
 }
 public int getBirthday() {
     return birthday;
 }
 public void setBirthday(int birthday) {
     this.birthday = birthday;
 }
 public ColaEmployee(){
        
    }
 public ColaEmployee(String name,int month,int birthday){
        super();
        this.month =month;
        this.name =name;
        this.birthday =birthday;
    }
    public double getSalary(int month){
     return 0;
    }
 }


package Cola;

public class SalariedEmployee extends ColaEmployee {
    protected double money;
    public  SalariedEmployee (){
        
    }
    public  SalariedEmployee (String name,int month,int birthday,double money){
        super(name,month,birthday);
        this.money=money;
    }
    public double getSalary(int month){
        if(super.getMonth()==super.getBirthday()){
            return money+100;
        }else{
        return money;
    }
    }
}

package Cola;

public class HourlyEmployee extends ColaEmployee {
    protected int hour;
    protected int hourmoney;
    public  HourlyEmployee (){
        
    }
    public  HourlyEmployee (String name,int month,int birthday,int hour,int hourmoney){
        super(name,month,birthday);
        this.hour =hour;
        this.hourmoney=hourmoney;
    }
    public double getSalary(int month){
        if(super.getMonth()==super.getBirthday()){
        if(hour>160)
            return hourmoney*160+(hour-160)*hourmoney+100;
        else
            return hourmoney*hour+100;
        }else{
            if(hour>160)
                return hourmoney*160+(hour-160)*hourmoney;
            else
                return hourmoney*hour;
    }
    }
}

package Cola;

public class SalesEmployee extends ColaEmployee {
    protected double monthsales;
    protected double per;
    public  SalesEmployee (String name,int month,int birthday,double monthsales,double per){
        super(name,month,birthday);
        this.monthsales =monthsales;
        this.per =per;
    }
    public double getSalary(int month){
    if(super.getMonth()==super.getBirthday())
       return +monthsales*per+100;
    else
    return monthsales*per;
    }
}

    package Cola;

    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 Cola;

public class Test {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub

        ColaEmployee c1[]={new SalariedEmployee("sam",3,4,6666),
                new HourlyEmployee("cdv",3,5,110,888),
                new SalesEmployee("asd",3,7,6666,0.3)
};
for(int i=0;i<c1.length ;i++){
 new Company().getSalary( c1[i], 8);
}
}

}

课后作业
• 5、利用接口实现动态的创建对象[选做题]
• 5.1 创建4个类：
• 苹果
• 香蕉
• 葡萄
• 园丁
• 5.2 在三种水果的构造方法中打印一句话.
• 以苹果类为例
• class apple
• {
• public apple()
• {
• System.out.println(―创建了一个苹果类的对象‖);
}
• }
课后作业
• 类图如下：
• 5.3 要求从控制台输入一个字符串，根据字符串的
值来判断创建三种水果中哪个类的对象

package Shuiguo;
import java.util.Scanner;
public interface Fruit {
    
}
class Apple implements Fruit{
    public Apple(){
        System.out.println("创造了一个苹果类的对象");
    }
}
    class Banana implements Fruit{
        public Banana(){
            System.out.println("创造了一个香蕉类的对象");
        }
    }
        class Grape implements Fruit{
            public Grape(){
                System.out.println("创造了一个葡萄类的对象");
            }
        }


package Cola;
import java.util.Scanner; 
public class Gardanner {
    public static void main(String[] args){
        Gardanner a=new Gardanner();
      a.create();
    }
   public Fruit create(){
       Fruit f=null;
       Scanner input =new Scanner(System.in);
       String name=input.next();
       if(name.equals("苹果")){
           f=new Apple();
       }else if(name.equals("香蕉")){
           f=new Banana();
       }else if(name.equals("葡萄")){
           f=new Grape();
   }
    return f;
   }
}