Constructors and Destructors in C++

Constructors in C++

1. Constructors are instance member functions and these are the first action which is been performed in lifetime of an object.
2. Constructors are invoked implicitly at runtime.
3. Constructors are used to initialize instance variables of an object with an appropriate value.
4. Constructors do not have any return type , so no need to write void while explicitly defining it.
5. Constructor overloading is possible.

Destructors in C++

1. Like constructors destructors are also instance member functions .
2. It is the last action been performed in the lifetime of an object.
3. They do not have any return type and they don't take any arguments that's why destructor overloading is not possible due to same signature.
4. Destructor main purpose is to free the memory resources being handled by instance variables of an object.