第九次作业

3、设计三个类,分别如下:(知识点:抽象类及抽象方法)[必做题]

·3.1设计 Shape 表示图形类,有面积属性 area 、周长属性 per ,

颜色属性 color ,有两个构造方法(一个是默认的、一个是为颜色赋值的),还有3个抽象方法,分别是: getArea 计算面积、 getPer 计算周长、 showAll 输出所有信息,还有一个求颜色的方法 getColor 。

·3.2设计2个子类:

·3.2.1 Rectangle 表示矩形类,增加两个属性, Width 表示长度

、 height 表示宽度,重写 getPer 、 getArea 和 showAll 三个方法,另外又增加一个构造方法(一个是默认的、一个是为高度、宽度、颜色赋值的)。

3.2.2 Circle 表示圆类,增加1个属性, radius 表示半径,重写

 getPer 、 getArea 和 showAll 三个方法,另外又增加两个构造方法(为半径、颜色赋值的)。

·3.3在 main 方法中,声明创建每个子类的对象,并调用2个

子类的 showAll 方法。

 

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//Shape类
package xingzhuang;

public abstract class Shape {
    
double area;
double per;
String color;

public Shape() {
    super();
}
public Shape(String color) {
    super();
    this.color = color;
}

public abstract double getArea();

public abstract double getPer();

public abstract void showAll();

public String getColor() {
    return color;
}
}

//Rectangle 类
package xingzhuang;

public class Rectangle extends Shape {
    double Width;
    double height;
    public Rectangle() {
        super();
    }

    public Rectangle(double width, double height,String color) {
        super(color);
        Width = width;
        this.height = height;
    }

    public double getArea() {
        double Area=Width*height;
        return Area ;
                }

    public double getPer() 
    {
        double Per=2*Width+2*height;
        return Per;
        }

    public void showAll()
    {
        System.out.println("长:"+height);
        System.out.println("宽:"+Width);
        System.out.println("面积:"+getArea());
        System.out.println("周长:"+getPer());
        System.out.println("颜色"+color);
    }

    
}

//Circle 类
package xingzhuang;

public class Circle extends Shape{
    
    public Circle() {
        super();
    }
    
    public Circle(double radius,String color) {
        super(color);
        this.radius = radius;
    }

    double radius;
    
    public  double getArea() {
        double Area=radius*radius*3.14;
        return Area;
    }

    public  double getPer() 
    {
        double Per=2*3.14*radius;
        return Per;
    }

    public  void showAll()
    {
        System.out.println("半径:"+radius);
        System.out.println("面积:"+getArea());
        System.out.println("周长:"+getPer());
        System.out.println("颜色"+color);
    }
}

//menu 类

package xingzhuang;

public class menu {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Shape test_1=new Circle(2,"黑的");
        Shape test_2=new Rectangle(5,5,"白的");
        test_1.showAll();
        test_2.showAll();
    }

}
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·4、 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

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在一个 ColaEmployee 数组里,并单元出数组中每个员工当月的工资。

资的员工。属性:月薪

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//ColaEmployee类
package Cola;

public abstract class ColaEmployee {
    String name;
    int birthday;
    
    public ColaEmployee() {
        super();
    }

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

    public abstract double getSalary(int month);
}
//SalariedEmployee类
package Cola;

public class SalariedEmployee extends ColaEmployee{
    double Salary;

    public SalariedEmployee() {
        super();
    }

    public SalariedEmployee(String name,int birthday,double salary) {
        super(name,birthday);
        Salary = salary;
    }

    public double getSalary(int month) {
        if(birthday==month) 
        {
            Salary=Salary+100;
        }
        return Salary;
    }
    
}
//HourlyEmployee类
package Cola;

public class HourlyEmployee extends ColaEmployee{
    double Hour_Salary;
    double Moon_WorkHour;
    
    public HourlyEmployee() {
        super();
    }

    public HourlyEmployee(String name,int birthday,double hour_Salary, double moon_WorkHour) {
        super(name,birthday);
        Hour_Salary = hour_Salary;
        Moon_WorkHour = moon_WorkHour;
    }

    public double getSalary(int month) {
        double Salary=0;
        if(Moon_WorkHour<=160) 
        {
            Salary=Hour_Salary*Moon_WorkHour;
        }else if(Moon_WorkHour>160) 
        {
            Salary=Hour_Salary*Moon_WorkHour+(Moon_WorkHour-160)*Hour_Salary*1.5;
        }
        if(birthday==month) 
        {
            Salary=Salary+100;
        }
        return Salary;
    }
    

}
//SalesEmployee类
package Cola;

public class SalesEmployee extends ColaEmployee{
    int Moon_Sales;
    double Commission;
    
    public SalesEmployee() {
        super();
    }

    public SalesEmployee(String name, int birthday, int moon_Sales, double commission) {
        super(name, birthday);
        Moon_Sales = moon_Sales;
        Commission = commission;
    }

    public double getSalary(int month) {
        double Salary=0;
        Salary=Moon_Sales*Commission;
        if(birthday==month) 
        {
            Salary=Salary+100;
        }
        return Salary;
    }
    
}
//Company类
package Cola;

public class Company {
    public void ShowSalary(ColaEmployee test,int month) 
    {
        System.out.println("员工:"+test.name+"\n月份:"+month+"\n工资状况:"+test.getSalary(month));
    }
}
//测试类
package Cola;

public class TestCompany {

    public static void main(String[] args) {
        ColaEmployee[] test=new ColaEmployee[3];
        test[0]=new SalariedEmployee("leisihao",5,50000);
        test[1]=new HourlyEmployee("zhixiang",2,150,200);
        test[2]=new SalesEmployee("taoxinyv",9,120000,0.3);
        Company show_fun=new Company();
        show_fun.ShowSalary(test[0], 5);
        show_fun.ShowSalary(test[1], 2);
        show_fun.ShowSalary(test[1], 3);
        show_fun.ShowSalary(test[2], 9);
        show_fun.ShowSalary(test[2], 10);
    }

}
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posted @ 2023-05-29 19:45  姚佳旭  阅读(15)  评论(0编辑  收藏  举报