对象数组

#include<iostream>
using namespace std;
class Box
{
public:
 Box(int h=10,int w=12,int len=15):height(h),width(w),length(len) {}
 int volume();
private:
 int height;
 int width;
 int length;
};
int Box::volume()
{
 return(height*width*length);
}
int main()
{
 Box a[3]={Box(10,12,15),Box(15,18,20),Box(16,20,26)};
 cout<<"volume of a[0] is "<<a[0].volume() <<endl;
 cout<<"volume of a[1] is "<<a[1].volume()<<endl;
 cout<<"volume of a[2] is "<<a[2].volume()<<endl;
 return 0;
}