Default Constructor in C++ with example

The Default Constructor is usually a special member function which is invoked by the C++ compiler without any argument for initializing the objects of a class.

The purpose of the Default Constructor is to construct a default object of the class type.

Example:

#include<iostream.h>

#include<conio.h>

Class employee

               {

               int id;

               char name[20];

               public:

               employee()          //constructor

                              {

                              id = 110;

                              }

void get();

void put();           

};

void employee :: get()

{

cout<<”Enter the employee name =”;

cin>>name;    

}

void employee :: put()

{

               cout<<” Employee Id = ”<<id;

               cout<<” Employee Name = ”<<name;

}

void main()

{

clrscr();

               employee emp;

               emp.get();

               emp.put();

               getch();

}