#include<iostream>
using namespace std;
class Box
{
public:
Box();
Box(double lengthvalue,double breadthvalue,double heightvalue);
double volume()const;
int comparevolume(const Box& otherbox)const;
int getobjectcount()const {return objectcount;}
private:
static int objectcount;
double length;
double breadth;
double height;
};
Box::Box()
{
    cout<<endl<<"Default constructor called"<<endl;
    ++objectcount;
    length=breadth=height=1;
}
Box::Box(double lengthvalue,double breadthvalue,double heightvalue):length(lengthvalue),
breadth(breadthvalue),height(heightvalue)
{
    cout<<endl
        <<"constructor called"
        <<endl;
    ++objectcount;
    if(length<=0)
        length=1.0;
    if(breadth<=1.0)
        breadth=1.0;
    if(height<=0)
        height=1.0;
}
double Box::volume()const
{
    return length*breadth*height;
}
int Box::comparevolume(const Box& otherbox)const
{
    if(this->volume()<otherbox.volume())
        return 1;
    else
        return 0;
}
int Box::objectcount=0;

int main()
{
    cout<<endl;
    Box firstbox(17.0,11.0,5.0);
    cout<<"object count is:"<<firstbox.getobjectcount()<<endl;
    Box boxes[5];
    cout<<"objects count is:"<<firstbox.getobjectcount()<<endl;
    cout<<"volume of the first box="<<firstbox.volume()<<endl;
    const int count=sizeof boxes/sizeof boxes[0];
    cout<<"The boxes array has "<<count<<"elements."<<endl;
    cout<<"Each element occupies"<<sizeof boxes[0]<<"bytes."
        <<endl;
    for(int i=0;i<count;i++)
        cout<<"volume of boxes["<<i<<"]="<<boxes[i].volume()
        <<endl;
    return 0;
}

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