以圆类Circle为基础设计球类Sphere

以点类Point为基类公有派生圆类Circle,并以圆类Circle为基类公有派生球类Sphere,main(void)函数完成对其的测试。

Point类结构说明:

Point类的数据成员包括:
①私有数据成员:X坐标x(double型),Y坐标y(double型)。
Point类成员函数包括:
①有参构造函数Point(double, double)和拷贝构造函数Point(const  Point  &),其中有参构造函数参数默认值为0,输出信息“Point Constructor run”,拷贝构造函数输出信息“Point CopyConstructor run”
②析构函数,析构函数输出信息“Point Destructor run”
③公有函数成员:void  setX(double)和double getX() const分别返回和设置X坐标
④公有函数成员:void  setY(double)和double getY() const分别返回和设置Y坐标
⑤公有成员函数void show() const用于显示点的坐标信息,显示格式为:(x,y)
⑥公有成员函数double area() const用于计算点的面积,点的面积为0
 

###Circle类结构说明:

公有派生圆类Circle以点类Point为基类,相较于点类Point,Circle类的结构说明如下:
Circle类的数据成员包括:
①私有数据成员:X坐标x继承自Point类,Y坐标y继承自Point类。
②私有数据成员:半径radius(double型)
③静态数据常量PI(double型),其值为3.14159
Circle类成员函数包括:
①定义有参构造函数Circle(double, double, double)和拷贝构造函数Circle(Circle &),其中有参构造函数参数包括圆心坐标和半径,圆心调用Point类构造函数进行构造,各参数默认值为0,输出信息“Circle Constructor run”,拷贝构造函数输出信息“Circle CopyConstructor run”
②定义析构函数,析构函数输出信息“Circle Destructor run”
③定义公有函数成员:void setRadius(double)和double getRadius() const分别返回和设置radius
④定义公有成员函数double circumference() const用于计算圆的周长
⑤重载double area() const用于计算圆的面积
⑥重载void show() const用于显示圆的信息,显示格式为:
(圆心X坐标,圆心Y坐标),Radius=半径
 

Sphere类结构说明:

公有派生球类Sphere以圆类Circle为基类,Sphere类的结构说明如下:
Sphere类的数据成员包括:
①私有数据成员:X坐标x继承自Circle类,Y坐标y继承自Circle类,半径radius继承自Circle类。
②静态数据常量PI继承自Circle类。
Sphere类成员函数包括:
①定义有参构造函数Sphere(double, double, double)和拷贝构造函数Sphere(Sphere &),其中有参构造函数参数包括圆心坐标和半径,圆心调用Point类构造函数进行构造,各参数默认值为0,输出信息“Sphere Constructor run”,拷贝构造函数输出信息“Sphere CopyConstructor run”
②定义析构函数,析构函数输出信息“Sphere Destructor run”
③定义公有成员函数double volume() const用于计算球的体积
④重载double area() const用于计算球的表面积
 

裁判测试程序样例:

 
#include <iostream>
using namespace std;
class Point{
    protected:
      double x;
      double y;
    public:
      Point(double xv=0,double yv=0);//有参构造
      Point(const Point &p);         //拷贝构造
      ~Point();                      //析构函数
      void show() const;             //显示Point信息
      double area()const;            //面积=0
      void setX(double xv);          //设置X坐标
      void setY(double yv);          //设置Y坐标
      double getX() const;           //获取X坐标
      double getY() const;           //获取Y坐标
};
//有参构造
Point::Point(double xv,double yv){
    x=xv;
    y=yv;
    cout<<"Point Constructor run"<<endl;
}
//拷贝构造
Point::Point(const Point &p){
    x=p.x;
    y=p.y;
    cout<<"Point CopyConstructor run"<<endl;
}
//析构函数
Point::~Point(){
    cout<<"Point Destructor run"<<endl;
}
//显示Point
void Point::show() const{
    cout<<"("<<x<<","<<y<<")";
}
//设置X坐标
void Point::setX(double xv){
    x=xv;
}
//设置Y坐标
void Point::setY(double yv){
    y=yv;
}
//面积函数
double Point::area() const{
    return 0;
}
//获取X坐标
double Point::getX() const{
    return x;
}
//获取Y坐标
double Point::getY() const{
    return y;
}

/*请在这里填写答案*/

//主函数
int main(void){
    double  r;
    cin>>r;
    Sphere s1(1,2,4),s2(s1);
    s1.show();
    cout<<endl<<"Area="<<s1.area()<<endl<<"Volume="<<s1.volume()<<endl;
    s2.setRadius(r);
    s2.Circle::show();
    cout<<endl<<"Area="<<s2.Circle::area()<<endl<<"Circumference="<<s2.Circle::circumference()<<endl;
    return 0;
}
 

输入样例:

6.0
 

输出样例:

Point Constructor run
Circle Constructor run
Sphere Constructor run
Point CopyConstructor run
Circle CopyConstructor run
Sphere CopyConstructor run
(1,2),Radius=4
Area=201.062
Volume=268.082
(1,2),Radius=6
Area=113.097
Circumference=37.6991
Sphere Destructor run
Circle Destructor run
Point Destructor run
Sphere Destructor run
Circle Destructor run
Point Destructor run




class Circle:public Point
{
protected:
double radius;
public:
static double PI;
Circle(double a=0,double b=0,double c=0);
Circle(Circle &a);
~Circle();
void setRadius(double a);
double getRadius()const;
double circumference()const;
double area()const;
void show()const;
};
double Circle:: PI=3.14159;
Circle::Circle(double a,double b,double c):Point(a,b)
{
radius=c;
cout<<"Circle Constructor run"<<endl;
}
Circle::Circle(Circle &a):Point(a)
{
radius=a.radius;
cout<<"Circle CopyConstructor run"<<endl;
}
Circle::~Circle()
{
cout<<"Circle Destructor run"<<endl;
}
void Circle::setRadius(double a)
{
radius=a;
}
double Circle::getRadius()const
{
return radius;
}
double Circle::circumference()const
{
return 2*PI*radius;
}
double Circle::area()const
{
return PI*radius*radius;
}
void Circle::show()const
{
cout<<"("<<x<<","<<y<<")"<<",Radius="<<radius;
}
class Sphere:public Circle
{
public:
Sphere(double a=0,double b=0,double c=0):Circle(a,b,c)
{
cout<<"Sphere Constructor run"<<endl;
}
Sphere(Sphere &p):Circle(p)
{
cout<<"Sphere CopyConstructor run"<<endl;
}
~Sphere()
{
cout<<"Sphere Destructor run"<<endl;
}
double volume()const
{
return (4*PI*radius*radius*radius)/3;
}
double area()const
{
return 4*PI*radius*radius;
}
};

posted @ 2023-05-19 18:07  不如喝点  阅读(88)  评论(0编辑  收藏  举报