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 wang;

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




public Shape(String color) {
super();
this.color = color;
}
public Shape() {
super();
}
public abstract double getArea() ;
public void setArea(double area) {
this.area = area;
}
public abstract double getPer() ;
public void setPer(double per) {
this.per = per;
}
public String getColor() {
return color;
}
public void setColor(String color) {
this.color = color;
}

public abstract void showAll();

}

package wang;

public class Rectangle extends Shape {
double weight;
double height;

public Rectangle(String color) {
super(color);
}

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

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

@Override
public double getPer() {
// TODO Auto-generated method stub
return (weight+height)*2;
}

@Override
public void showAll() {
// TODO Auto-generated method stub
System.out.println("长是: "+weight);
System.out.println("宽是: "+height);
System.out.println("面积是: "+getArea());
System.out.println("周长是: "+getPer());
System.out.println("颜色是: "+getColor());
}

}

package wang;

public class Circle extends Shape {
double radius;
public Circle() {
super();
}

public Circle(double radius,String color) {
super(color);
this.radius = 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);

}

}

package 王;

public class Test {

public static void main(String[] args) {
// TODO Auto-generated method stub
Circle i=new Circle(2,"黑色");
Rectangle r=new Rectangle("白色", 8, 4);
r.showAll();
i.showAll();
}

}

 

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




public Shape(String color) {
super();
this.color = color;
}
public Shape() {
super();
}
public abstract double getArea() ;
public void setArea(double area) {
this.area = area;
}
public abstract double getPer() ;
public void setPer(double per) {
this.per = per;
}
public String getColor() {
return color;
}
public void setColor(String color) {
this.color = color;
}

public abstract void showAll();

}

package wang;

public class Rectangle extends Shape {
double weight;
double height;

public Rectangle(String color) {
super(color);
}

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

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

@Override
public double getPer() {
// TODO Auto-generated method stub
return (weight+height)*2;
}

@Override
public void showAll() {
// TODO Auto-generated method stub
System.out.println("长是: "+weight);
System.out.println("宽是: "+height);
System.out.println("面积是: "+getArea());
System.out.println("周长是: "+getPer());
System.out.println("颜色是: "+getColor());
}

}

package wang;

public class Circle extends Shape {
double radius;
public Circle() {
super();
}

public Circle(double radius,String color) {
super(color);
this.radius = 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);

}

}

package girl;

public class Test {

public static void main(String[] args) {
// TODO Auto-generated method stub
Circle i=new Circle(2,"黑色");
Rectangle r=new Rectangle("白色", 8, 4);
r.showAll();
i.showAll();
}

}

 

 

、 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

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);
    }

}