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Write a C++ Program to show Example of Default copy constructor

robaa
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2022-11-26
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Write a C++ Program to show Example of Default copy constructor. Here’s a Simple Program to show Example of Default copy constructor in C++ Programming Language.

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robaa
2022-11-26
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What is Class and Objects in C++?

  • Class is a user defined data type, which holds its own data members and member functions, which can be accessed and used by creating instance of that class.
  • The variables inside class definition are called as data members and the functions are called member functions.
  • Class is just a blue print, which declares and defines characteristics and behavior, namely data members and member functions respectively. And all objects of this class will share these characteristics and behavior.
  • Objects are instances of class, which holds the data variables declared in class and the member functions work on these class objects.
  • Each object has different data variables. Objects are initialized using special class functions called Constructors.
  • It is a type of a copy constructor which is used to initialize the newly created object with the previously created object of a same type is called default copy constructor.
  • The objects are assigned by using the assignment operator or by giving object as a parameter. It will copy the values of fields.

Below is the source code for C++ Program to show Example of Default copy constructor which is successfully compiled and run on Windows System to produce desired output as shown below :

 
 

SOURCE CODE : :

/* C++ Program to show Example of Default copy constructor */

#include<iostream>
#include<string>
using namespace std;

class Book
{
    private:
        int pages;
        char title[3];

    public:
        Book(int q, char w[3])
        {
            pages= q;
            for(int i=0 ; i<3 ; i++)
            {
                title[i]= w[i];
            }
        }

        void show()
        {
            cout<<"\nTitle of Book :: "<<title<<endl;
            cout<<"\nNo. of Pages :: "<<pages<<endl<<endl;
        }
};


int main()
{
    Book b1(25, "C++");
    Book b2(b1);
    Book b3= b1;

    cout<<"\nDetail of b1 :: "<<endl;
    b1.show();
    cout<<"Detail of b2:"<<endl;
    b2.show();
    cout<<"Detail of b3:"<<endl;
    b3.show();

    return 0;
}

OUTPUT : :

/* C++ Program to show Example of Default copy constructor */


Detail of b1 ::

Title of Book :: C++

No. of Pages :: 25

Detail of b2:

Title of Book :: C++

No. of Pages :: 25

Detail of b3:

Title of Book :: C++

No. of Pages :: 25


Process returned 0

Above is the source code and output for C++ Program to show Example of Default copy constructor which is successfully compiled and run on Windows System to produce desired output.

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