Container Class In C++ | Container Class Explained With Real Life Examples

 Container Class In C++





What is a container class?

A container class is that class in which you can create an object of any other class and use it like you use it in your main() function.

To understand containers more quickly suppose you have a house and a hotel class. So a house class may have data members like a number of rooms, bedroom_size, bedroom_color. And a hotel class may have the same data member as a house but it may have some more functionality like checkin_time, checkout_time, etc.
So in this case you can create a hotel as a class container so you can use house data members inside that also.


Here is an example of how you can create a container class in C++ - 



#include <iostream>
using namespace std;

class house
{
    public:
    int no_of_rooms = 5;
    int bedroom_size = 1200;//1200 sq.ft.
    char bedroom_color[100] = "red"; //red,green,blue
};

class hotel
{
    public:
    //As i defined object of house class then 
    //now hotel class becomes container class
    //which containes house class
    house h1;
    void details()
    {
        cout<<"No Of Rooms Is: "<<h1.no_of_rooms<<endl;
        cout<<"Color Of Bedroom Is: "<<h1.bedroom_color<<endl;
    }
};

int main()
{

    hotel H1;
    H1.details();
    return 0;
}

Output - 

No Of Rooms Is: 5
Color Of Bedroom Is: red

So Here you can see a hotel class's object can access the data member or even methods of house class.
Location: 22, Mangal Nagar Road, Vishnu Puri Colony, Indore, Madhya Pradesh 452001, India

Comments

Post a Comment

Popular posts from this blog

Array Of Objects In C++ | Array Of Objects Explained With Real Life Example

 Array Of Objects In C++ What is an array of objects? As you know about the array that it is a set of anything like if there is an array of characters then there will be a set of characters. So the same concepts will be applied to objects - A array of objects will be a set of objects. To understand array of objects more clearly suppose you have a form for a job application and you want to send same job application to 100 people. Then rather then creating 100 job application from scratch you can photocopy the same job application form 100 times.Right? So here how you can create array of object in c++ -  #include   < iostream > using   namespace   std ; class   School {      public :        int   std_id ;      int   std_class ;      float   percentage ;      void   add_details ()      {                   cout << " Enter The Student ID:  " << endl ;          cin >> std_id ;          cout << " Enter The Class Of The Student:  " << end
Read more

Pointers In C++ | Pointer Explained With Real Life Examples | Pointers In OOPs C++

Pointers In C++ What is pointer in c++ ? If you searched about pointers in c++ on google probably you saw that  In C++, a  pointer  refers to a variable that holds the address of another..... BlahBlahBlah..... But you won't able to understand too much about pointers. So don't worry I will explain this concept very easily by a real life example.   So before understanding about pointers first you have to understand why we need pointers? As you know basically when you create variable then it will occupy some space in your pc. And when you create a another variable with same value or modify that variable with some other value then it will occupy more space in the pc. For example -  #include   < iostream > using   namespace   std ; int   main () {      int   var   =   12 ;  //Suppose This will occupy some space which ID is AB12      int   var1   =   12 ;  //Now This will also occupy some space which ID will be BB12 (ALWAYS DIFFERENT)           var   =   45 ; //This will also
Read more

Destructor In C++ | Destructor Explained With Real Life Examples

 Destructor In C++ What is a Destructor ? As you previously understood about Constructor . You know how constructor works so destructor is opposite of that -  What are opposite in destroctor -  - Destructor call the end of a class always - Destructor takes no argument - Destructor won't return anything - To Modify a constructor you should use ~className Other than that Destructor is same as constructor. #include   < iostream > using   namespace   std ; class   myClass {           public :      ~   myClass ()      {          cout << " I AM A DESRUCTOR " << endl ;      }      void   get ()      {          cout << " I am a simple method " << endl ;      }      }; int   main () {      myClass   m1 ;      m1 . get ();      return   0 ; } Output -  I am a simple method I AM A DESRUCTOR Here you can see we define destructor at starting in class but the destructor executed at last always.
Read more