java第十次作业

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clr，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、shwAll输出所有信息，还有一个求颜色的方法getClr。

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shwAll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shwAll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shwAll方法

package test;

public class Shape {
    double area;
    double per;
    char color;
    public Shape() {
        super();
    }
    public Shape(char color) {
        super();
        this.color = color;
    }
}

package test;

public class Rectangle extends Shape {
    public double getPer() {
        // TODO Auto-generated method stub
        return (width + height) * 2;
    }

    public double getArea() {
        // TODO Auto-generated method stub
        return width * height;
    }

    double width;
    double height;

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

    public Rectangle() {
        super();
    }
    public void showAll() {
        System.out.println("矩形的长是" + width + ",宽是" + height + ",颜色是" + color + ",周长是" + getPer() + ",面积是" + getArea());
    }

}

package test;

public class Circle extends Shape{
    double radius;

    public void showAll(){
        System.out.println("圆形的半径是"+radius+",颜色是"+color+",周长是"+getPer()+",面积是"+getArea());
    }
    public double getPer() {
        // TODO Auto-generated method stub
        return 2*3.14*radius;
    }
    public double getArea() {
        // TODO Auto-generated method stub
        return 3.14*radius*radius;
    }
    public Circle(double radius,char color) {
        super();
        this.radius = radius;
        this.color=color;
    }

}

package test;

public class Test {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Rectangle r = new Rectangle(2, 3, '黑');
        r.showAll();
        Circle c = new Circle(4, '红');
        c.showAll();

    }

}

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

//ColaEmployee类

package test;

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 int getMonth() {
        return month;
    }

    public double getSalary(int month) {
        return 0;
    }
}package test;

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 int getMonth() {
        return month;
    }

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

package test;

public class HourlyEmployee extends ColaEmployee {
    protected int hourmoney;
    protected int daymonth;

    public HourlyEmployee() {
        super();
    }

    public HourlyEmployee(String name, int month, int hourmoney, int daymonth) {
        super(name, month);
        this.hourmoney = hourmoney;
        this.daymonth = daymonth;
    }

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

}

package test;

public class SalariedEmployee extends ColaEmployee {
    protected double money;

    public SalariedEmployee() {
        super();
    }

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

    public double getSalary(int month) {
        if (super.month == month) {
            return money + 100;
        } else {
            return money;
        }
    }

}

package test;

public class SalesEmployee extends ColaEmployee {
    protected int monthsales;
    protected double rate;

    public SalesEmployee() {
        super();
    }

    public SalesEmployee(String name, int month, int monthsales, double rate) {
        super(name, month);
        this.monthsales = monthsales;
        this.rate = rate;
    }

    public double getSalary(int month) {
        if (super.month == month) {
            return monthsales * rate + 100;
        } else {
            return monthsales * rate;
        }
    }

}

package test;

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) );
    }
}

package test;

public class Test {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        ColaEmployee c[] = { new SalariedEmployee("salar", 3, 15000), new HourlyEmployee("hourly", 5, 20, 200),
                new SalesEmployee("sales", 8, 10000, 0.6) };
        for (int i = 0; i < c.length; i++) {
            new Company().getSalary(c[i], 6);

        }
    }
}

posted @ 2023-06-05 10:08 边海(皿ﾟ) 阅读(33) 评论(0) 收藏举报

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java第十次作业

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