Answer to Question #198334 in C++ for farhan khan

Question

Model a room class, whose member data is three integers length, width and height. The class contains two constructors to initialize the room class objects, first is no argument constructor, while the second in three arguments constructor. Class also contains three member functions i.e., getdatat() to get the data from user and store in the memory of calling object and showdata() to show the room data of calling object. int volume(int l, int w, int h) function should receive the length, width and height values from the objects one by one and return the volumes of the three objects respectively. Write a main program to declare the three object r1, r2, and r3 of room class. Two object will store the values through three argument constructor and third object will get the data from user by calling getdata() function. Then all three objects should call the volume functions to calculate their volumes and store them in three variables of type integer.

Answer 1

#include <iostream> 
#include <string>


using namespace std;


//Model a room class, whose member data is three integers length, width and height. 
class Room{
private:
	int length;
	int width;
	int height;
public:


	//The class contains two constructors to initialize the room class objects, first is no argument constructor, while the second in three arguments constructor. 
	Room(){}


	Room(int length,int width,int height){
		this->length=length;
		this->width=width;
		this->height=height;
	}


	//Class also contains three member functions:
	//getdatat() to get the data from user and store in the memory of calling object
	void getdata(){
		cout<<"Enter length: ";
		cin>>length;
		cout<<"Enter width: ";
		cin>>width;
		cout<<"Enter height: ";
		cin>>height;
	}


	//showdata() to show the room data of calling object. 
	void showdata(){
		cout<<"The length: "<<length<<"\n";
		cout<<"The width: "<<width<<"\n";
		cout<<"The height: "<<height<<"\n";
	}




	int getLength(){
		return this->length; 
	}
	int getWidth(){
		return this->width;
	}
	int getHeight(){
		return this->height;
	}
	//int volume(int l, int w, int h) function should receive the length, width and height 
	//values from the objects one by one and return the volumes of the three objects respectively. 
	int volume(int l, int w, int h) {
		return l*w*h;
	}
};


int main (){
	//Write a main program to declare the three object r1, r2, and r3 of room class. 
	//Two object will store the values through three argument constructor
	Room r1(5,10,5),r2(2,2,2),r3;
	
	//third object will get the data from user by calling getdata() function. 
	r3.getdata();
	//Then all three objects should call the volume functions to calculate their volumes and store them in three variables of type integer.
	r1.showdata();
	cout<<"The volume of r1: "<<r1.volume(5,10,5)<<"\n";
	cout<<"\n";
	r2.showdata();
	cout<<"The volume of r2: "<<r2.volume(2,2,2)<<"\n";
	cout<<"\n";
	r3.showdata();
	cout<<"The volume of r3: "<<r3.volume(r3.getLength(),r3.getWidth(),r3.getHeight())<<"\n";


	system("pause");
	return 0;
}