JAVA第十五周作业

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 com.gd.z;

public class ColaEmployee{
    String Ename;
    int Emonth;
    public  double getSalary(int month);
    public String getEname() {
        return Ename;
    }
    public void setEname(String ename) {
        Ename = ename;
    }
    public int getEmonth() {
        return Emonth;
    }
    public void setEmonth(int emonth) {
        Emonth = emonth;
    }
    public ColaEmployee(String ename, int emonth) {
        super();
        Ename = ename;
        Emonth = emonth;
    }
    

}

package com.gd.z;

public class Company {
    public void getSalary(ColaEmployee c, int month) {
        System.out
                .println(c.Ename + month + "月的月薪为" + c.getSalary(month) + "元");
    }
}

package com.gd.z;

public class HourlyEmployee extends ColaEmployee {
    double HSalary;
    double MHour;
    
    public HourlyEmployee(String ename, int emonth, double hSalary, double mHour) {
        super(ename, emonth);
        HSalary = hSalary;
        MHour = mHour;
    }

     public double getSalary(int month) {
            if (super.Emonth == month) {
                if (MHour > 160) {
                    return HSalary * 160 + HSalary * (MHour - 160) * 1.5 + 100;
                } else {
                    return HSalary * MHour + 100;
                }
            } else {
                if (MHour > 160) {
                    return HSalary * 160 + HSalary * (MHour - 160) * 1.5;
                } else {
                    return HSalary * MHour;
                }
            }
        }
}

package com.gd.z;

public class SalariedEmployee extends ColaEmployee{
    double MSalary;

    public SalariedEmployee(String ename, int emonth, double mSalary) {
        super(ename, emonth);
        MSalary = mSalary;
    }

     
    public double getSalary(int month) {
        // TODO Auto-generated method stub
        if(month==super.Emonth){
            return (MSalary+100);
        }else{
            return MSalary;
        }
    }

}

package com.gd.z;

public class SalesEmployee extends ColaEmployee {
     double MNum;
        double TiChengLv;
        
        public SalesEmployee(String ename, int emonth, double mNum, double tiChengLv) {
            super(ename, emonth);
            MNum = mNum;
            TiChengLv = tiChengLv;
        }

        public double getSalary(int month){
            if(super.Emonth==month){
                return MNum*TiChengLv+100;
            }else{
                return MNum*TiChengLv;
            }
        }

}

package com.gd.z;

public class TestCompany {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        ColaEmployee c[] = { new SalariedEmployee("普通员工", 1, 1200),
                new HourlyEmployee("领班", 7, 120, 110),
                new SalesEmployee("主管", 3, 25000, 0.5) };
        for (int i = 0; i < c.length; i++) {
            new Company().getSalary(c[i], 1);
        }
    }
    }

 

 

 

 

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 com.gd.c;

import java.util.Scanner;

public class shuiguo {
    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 Putao();
        } else {
            System.out.println("No");
        }
        return f;

    }
    public interface Fruit {

    }
    class Apple implements Fruit {
        public Apple() {
            System.out.println("创建了一个苹果对象");
        }
    }

    class Banana implements Fruit {
        public Banana() {
            System.out.println("创建了一个香蕉对象");
        }
    }

    class Putao implements Fruit {
        public Putao() {
            System.out.println("创建了一个葡萄对象");
        }
    }

}

package com.gd.c;

public class testshuigou {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        shuiguo g=new shuiguo();
        g.create();
       
    }

}