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。

public class ColaEmployee {
    protected String name;
    protected int month;

    public ColaEmployee() {
        super();

    }

    public ColaEmployee(String name, int month) {
        super();
        this.name = name;
        this.month = month;
    }

    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 double getSalary(int month) {
        return 0;

    }

}
public class SalariedEmployee extends ColaEmployee {
    double monSalary;// 月薪

    public SalariedEmployee() {
        super();

    }

    public SalariedEmployee(String name, int month, double monSalary) {
        super(name, month);
        this.monSalary = monSalary;

    }

    public double getSalary(int month) {
        if (super.getMonth() == month) {
            return monSalary + 100;
        } else {
            return monSalary;
        }
    }
}
public class HourlyEmployee extends ColaEmployee {
    int hourSalary;// 时薪
    int hourNum;// 每月工作的小时数

    public HourlyEmployee() {
        super();

    }

    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.getMonth() > 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;

            }
        }
    }

}
public class SalesEmployee extends ColaEmployee {
    int monthSales;// 月销售额
    double royaltyRate;// 提成率

    public SalesEmployee() {
        super();

    }

    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.getMonth() == month) {
            return monthSales * royaltyRate + 100;
        } else {
            return monthSales * royaltyRate;
        }
    }

}
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");
    }

}
public class Test {

    public static void main(String[] args) {
           // 创建、初始化数组
        ColaEmployee[] cel = {
                new SalariedEmployee("salariedEmployee", 6, 30000),// name,month,月薪
                new HourlyEmployee("hourlyEmployee", 5, 100, 300),// name,month,时薪,小时数
                new SalesEmployee("salesEmployee", 3, 500000, 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], 10);
        }
    }
}

 

 

 


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

import java.util.Scanner;

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");
    }
}

class Gardener {
    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("不会种");
        }
        return f;

    }
}
public class Test {
    public static void main(String[] args) {
        Gardener g = new Gardener();
        g.create();

    }
}

 

posted @ 2021-06-18 17:29  假̶装̶乐̶观̶♡̶  阅读(27)  评论(0编辑  收藏  举报