第十五周上机作业

Posted 2021-06-18 徐涛%

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 Week15;

public class Colaemployee {

    String name;
    int month;
    
    public Colaemployee() {
        super();
        // TODO Auto-generated constructor stub    }

    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;
    }
    
    
    

}

 

package Week15;

public class Hourlyemployee extends Colaemployee {

    int hourmoney;
    int worktime;
    public Hourlyemployee() {
        super();
        // TODO Auto-generated constructor stub    }

    public Hourlyemployee(int hourmoney, int worktime) {
        super();
        this.hourmoney = hourmoney;
        this.worktime = worktime;
    }
    public double getSalary(int month) {
        if (super.getMonth() > month) {
            if (worktime > 160) {
                return hourmoney * 160 + hourmoney * (worktime - 160) * 1.5
                        + 100;
            } else {
                return hourmoney * worktime + 100;

           }
       } else {
            if (worktime > 160) {
                return hourmoney * 160 + hourmoney * (worktime - 160) * 1.5;
            } else {
               return hourmoney * worktime;

           }
       }
   }


    
}

package Week15;

public class SalariedEmployee extends Colaemployee{

    int monthmoney;

    public SalariedEmployee() {
        super();
        // TODO Auto-generated constructor stub    }

    public SalariedEmployee(int monthmoney) {
        super();
        this.monthmoney = monthmoney;
    }

    public double getSalary(int month){
        if (super.getMonth()==month){
            return monthmoney;
        }
        else{
            return monthmoney;
        }
    }

    
    

}

package Week15;

public class SalesEmployee extends Colaemployee {

    int xiaoshoue;
    double tichenglv;
    public SalesEmployee() {
        super();
        // TODO Auto-generated constructor stub    }
    public SalesEmployee(int xiaoshoue, double tichenglv) {
        super();
        this.xiaoshoue = xiaoshoue;
        this.tichenglv = tichenglv;
    }
    public double getSalary(int month) {
        if (super.getMonth() == month) {
            return xiaoshoue * tichenglv + 100;
        } else {
            return xiaoshoue * tichenglv;
        }
    }
    
}

package Week15;

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 Week15;

public class Textcompany {

    public static void main(String[] args) {
    
        Colaemployee[] cel = {
                 new salariedemployee("salariedEmployee", 6, 30000),
                 new hourlyEmployee("hourlyEmployee", 5, 100, 300),
                 new SalesEmploye("salesEmployee", 3, 500000, 0.3) 
         };
        
        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

 

package Week15;
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 Week15;

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