#include
    
     #include
     
      #include
      
       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(10,12,13), Box(15,18,20), Box(16,20,26)}; cout<<"volume of a[0] is "<
       
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