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 text;

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 double getSalary(int month){
        return 0;
    }
    
}


package text;

public class SalariedEmployee extends ColaEmployee {
    int money;

    public SalariedEmployee() {
        super();
    }

    public SalariedEmployee(String name,int month,int money) {
        super(name,month);
        this.money = money;
    }
    public double getSalary(int month){
        if(super.month==month){
            return money+100;
        }else{
            return money;
        }
    }

}


package text;

public class HourlyEmployee extends ColaEmployee{
    int hmoney;
    int mday;
    public HourlyEmployee(){
        super();
    }
    public HourlyEmployee(String name,int month,int hmoney, int mday) {
        super();
        this.hmoney = hmoney;
        this.mday = mday;
    }
    public double getSalary(int month){
        if(super.month==month){
            if(mday>160){
                return hmoney*160*(mday-160)*1.5+100;
            }else{
                 return hmoney * mday + 100;
            }
        }else{
            if(mday>160){
                return hmoney*160+(mday-160)*1.5;
            }else{
                return hmoney*mday;
            }
        }
    }

}


package text;

public class SalesEmployee extends ColaEmployee {
    int monthlysales;
    double royaltyrate;
    public SalesEmployee(String name, int month, int monthlysales, double royaltyrate) {
        super();
        this.monthlysales = monthlysales;
        this.royaltyrate = royaltyrate;
    }
    public double getSalary(int month){
        if(super.month==month){
            return monthlysales*royaltyrate+100;
        }else{
            return monthlysales*royaltyrate;
        }
    }

}

package text;

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

}


package text;

public class Testcompany {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        ColaEmployee c1[]={new SalariedEmployee("salare",4,70000),
                           new HourlyEmployee("hourlye",4,200,30),
                           new SalesEmployee("salese",4,17000,0.7)
        };
        for (int i = 0; i < c1.length; i++) {
            new Copany().getSalary(c1[i], 4);

        }

    }

}

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 text;
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;

    }
}


package text;

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

 

 

posted @ 2021-06-18 17:03  计算机1902张铭麟  阅读(20)  评论(0编辑  收藏  举报