第十三次作业

、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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package zuoye;

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 zuoye;

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 zuoye;

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 zuoye;

public class test {

    public static void main(String[] args) {
        Rectangle r=new Rectangle(4,6,'紫');

        r.showAll();

        Circle c=new Circle(1,'粉');

        c.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(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。

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package zuoye;

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 zuoye;

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 zuoye;

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 zuoye;

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 zuoye;

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 zuoye;

public class testCompany {

    public static void main(String[] args) {
        ColaEmployee c1[] = { new SalariedEmployee("a", 10, 20000), new HourlyEmployee("b", 4, 202, 233),new SalesEmployee("c", 5, 342200, 0.5) };
        for (int i = 0; i < c1.length; i++) {
        new company().getSalary(c1[i], 5);
        }
    }
}
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posted @ 2023-07-20 21:33  山有扶苏3  阅读(5)  评论(0编辑  收藏  举报