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Request:
编写基于对象的程序,求3个长方柱(Bulk)的体积。数据成员包括长(length)、宽(width)、高(heigth)、体积,要求设计成员函数实现下面的功能:
(1)由键盘输入3个长方柱的长、宽、高;
(2)计算长方柱的体积(volume)和表面积(areas);
(3)输出这3个长方柱的体积和表面积;
#include <iostream>
using namespace std;
class Bulk{
private:
double length;
double width;
double height;
public:
double volume();
double area();
void setParameter();
void getResult();
};
void Bulk::setParameter(){
cin>>length;
cin>>width;
cin>>height;
}
double Bulk::volume(){
return length*width*height;
}
double Bulk::area(){
return 2*(length*width+length*height+height*width);
}
void Bulk::getResult(){
cout<<"volume: "<<volume()<<" area: "<<area()<<endl;
}
int main(){
Bulk B1, B2, B3;
B1.setParameter();
cout<<"For Bulk1: ";
B1.getResult();
B2.setParameter();
cout<<"For Bulk2: ";
B2.getResult();
B3.setParameter();
cout<<"For Bulk3: ";
B3.getResult();
cout<<'\n'<<"3个长方柱的总体积为: "<<B1.volume()+B2.volume()+B3.volume()<<endl;
cout<<"3个长方柱的总表面积为: "<<B1.area()+B2.area()+B3.area()<<endl;
return 0;
}
Result:
Gain:
void Bulk::setParameter(){
cin>>length;
cin>>width;
cin>>height;
}
void Bulk::getResult(){
cout<<"volume: "<<volume()<<" area: "<<area()<<endl;
}