C++ Constructors Constructor Parameters

1. C++ Constructors
Constructors
Constructor Parameters

2. Constructors
A constructor in C++ is a special
method that is automatically called when
an object of a class is created.
To create a constructor, use the same
name as the class, followed by
parentheses ():

3. Example
class MyClass { // The class
public: // Access specifier
MyClass() { // Constructor
cout << "Hello World!";
}
};
int main() {
MyClass myObj; // Create an object of
MyClass (this will call the constructor)
return 0;
}

4. Other Definition:
In C++, Constructor is automatically called
when the object(an instance of the class)
create.It is the special member function of
the class.The constructor has arguments is
called as a Parameterized Constructor.
It has the same name of the class.
It must be a public member.
No Return Values.
Default constructors are called when
constructors are not defined for the classes.

5. Constructor Parameters
Constructors can also take parameters
(just like regular functions), which can be
useful for setting initial values for
attributes.

6. Parameterized Constructor
Syntax
class class_name {
Access Specifier :
Member - Variables
Member – Functions
public:
class_name(variables) {
// Constructor code
} //... other Variables & Functions
}