Java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。

package 作业8;

public class Circle extends Shape {

    double radius;

    public double getPer() {

        return 3.14 * 2 * radius;

    }

    public double getArea() {

        return 3.14 * radius * radius;

    }

    public Circle(double radius, char color) {

        super();

        this.radius = radius;

        this.color = color;

    }

    @Override

    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());

    }

}
package 作业8;

public class Rectangle extends Shape {

    double length;

    double width;

    public double getPer() {

        return (length + width) * 2;

    }

    public double getArea() {

        return length * width;

    }

    public Rectangle() {

        super();

    }

    public Rectangle(double length, double width, char color) {

        super();

        this.length = length;

        this.width = width;

        this.color = color;

    }

    public void showAll() {

        System.out.println("矩形的长是" + length + "宽是" + width + "颜色是" + color + "周长是" + getPer() + "面积是" + getArea());

    }

}
package 作业8;

public abstract class Shape {

    double area;

    double per;

    char color;

    public Shape() {

        super();

    }

    public Shape(char color) {

        super();

        this.color = color;

    }

    public abstract double getPer();

    public abstract double getArea();

    public abstract void showAll();

    public char getColor() {

        return color;

    }
}
package 作业8;

public class test {

    public static void main(String[] args) {
        // TODO Auto-generated method stub

        Rectangle r = new Rectangle(2, 4, '蓝');

        r.showAll();

        Circle c = new Circle(1, '绿');

        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(intmonth)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
•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
•4.4SalesEmployee：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 作业81;

public abstract 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;

    }

}
package 作业81;

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 作业81;

public class HourlyEmployee extends ColaEmployee {

    protected int hour;

    protected int hoursalary;

    public HourlyEmployee() {

        super();

    }

    public HourlyEmployee(String name, int month, int hour, int hoursalary) {

        super(name, month);

        this.hour = hour;

        this.hoursalary = hoursalary;

    }

    public double getSalary(int month) {

        if (super.month == month) {

            if (hour > 160) {

                return hoursalary * 160 + hoursalary * (hour - 160) * 1.5 + 100;

            } else {

                return hoursalary * hour + 100;

            }

        } else {

            if (hour > 160) {

                return hoursalary * 160 + hoursalary * (hour - 160) * 1.5;

            } else {

                return hoursalary * hour;

            }

        }

    }

}
package 作业81;

public class SalariedEmployee extends ColaEmployee {

    private double salary;

    public SalariedEmployee(double salary) {

        super();

        this.salary = salary;

    }

    public SalariedEmployee(String name, int month, double salary) {

        super(name, month);

        this.salary = salary;

    }

    public double getSalary(int month) {

        if (super.month == month) {


            return month + 100;

        } else {

            return salary;

        }

    }

}

package 作业81;

public class SalesEmployee extends ColaEmployee {

    protected int yuexiaoshou;

    protected double tuchenglv;

    public SalesEmployee() {

        super();

    }

    public SalesEmployee(String name, int month, int yuexiaoshou, double tuchenglv) {

        super(name, month);

        this.yuexiaoshou = yuexiaoshou;

        this.tuchenglv = tuchenglv;

    }

    public double getSalary(int month) {

        if (super.month == month) {

            return yuexiaoshou * tuchenglv + 100;

        } else {

            return yuexiaoshou * tuchenglv;

        }

    }

}
package 作业81;

public class testCompany {

    public static void main(String[] args) {
        // TODO Auto-generated method stub

        ColaEmployee c1[] = { new SalariedEmployee("a", 10, 20000), new HourlyEmployee("b", 6, 200, 200),
                new SalesEmployee("c", 5, 340000, 0.5) };

        for (int i = 0; i < c1.length; i++) {

            new company().getSalary(c1[i], 5);

        }

    }

}