text: #include<iostream>
  using namespace std;
  class Box
  {
  public:
  	int length;
  	int width;
  	int height;
  	void Disp();
  	Box();
  	Box(int length,int width,int height);
  	void setLength(int l);
  	int getLength();
  	void setWidth(int w);
  	int getWidth();
  	void setHeight(int h);
  	int getHeight();
  	int getVolume();
  	int getArea(); 
  	~Box(){}
  };
  void Box::Disp()
  {
  	cout<<"the Box length is:   "<<length;
  	cout<<"\nthe Box Width is:  "<<width;
  	cout<<"\nthe Box height is: "<<height<<endl;
  }
  Box::Box()
  {
  	length=width=height=0;
  }
  Box::Box(int length,int width,int height)
  {
  	this->length=length;
  	this->width=width;
  	this->height=height;
  }
  void Box::setLength(int l)
  {
  	length=l;
  }
  int Box::getLength()
  {
  	return length;
  }
  void Box::setWidth(int w)
  {
  	width=w;
  }
  int Box::getWidth()
  {
  	return width;
  }
  void Box::setHeight(int h)
  {
  	height=h;
  }
  int Box::getHeight()
  {
  	return length;
  }
  int Box::getArea()
  {
  	return 2*(length*width+length*height+width*height);
  } 
  int Box::getVolume()
  {
  	return length*width*height;
  } 
  int main()
  {
  	Box box(2,3,4);
  	box.Disp();
  	cout<<"the box area is: "<<box.getArea()<<endl;
  	cout<<"the box volume is: "<<box.getVolume()<<endl;
  	return 0;
  } 