12-D Prog: 05 Write a program to show the working of all types of Constructors and Destructors.

Types of Constructors

   5A. Default Constructors: Default constructor is the constructor which doesn’t take any argument. It has no parameters.

1. // Cpp program to illustrate the // concept of Constructors #include <iostream.h> class construct { public:     int a, b;                   // Default Constructor     construct()     {         a = 10;         b = 20;     } }; void main() {         // Default constructor called automatically         // when the object is created     construct c;     cout << "a: "<< c.a << endl << "b: "<< c.b;      } Output: a: 10 b: 20 5B. Parameterized Constructors: It is possible to pass arguments to constructors. Typically, these arguments help initialize an object when it is created. To create a parameterized constructor, simply add parameters to it the way you would to any other function. When you define the constructor’s body, use the parameters to initialize the object. // CPP program to illustrate // parameterized constructors #include<iostream.h> class Point {     private:         int x, y;     public:         // Parameterized Constructor         Point(int x1, int y1)         {             x = x1;             y = y1;         }               int getX()               {             return x;         }         int getY()         {             return y;         }     }; void main() {     // Constructor called     Point p1(10, 15);     // Access values assigned by constructor     cout << "p1.x = " << p1.getX() << ", p1.y = " << p1.getY();      }   output: p1.x = 10, p1.y = 15 Paramaterized Constructor video: 5minutes https://www.youtube.com/watch?v=2LxU7vroRj0