Constructors are called every time you create an object, and destructors are called every time you destroy an object.

•Constructors and destructors do not have return types nor can they return values.
•References and pointers cannot be used on constructors and destructors because their addresses cannot be taken.
•Constructors cannot be declared with the keyword virtual.
•Constructors and destructors cannot be declared static, const, or volatile.
•Unions cannot contain class objects that have constructors or destructors.

Constructor Example
Employee::Employee() {
points = 10;
work = 10;
health = 10;
}
 

Destructor Example
The name of the destructor is the name of the class, preceded by a tilde (~). Here's an example of a destructor:

Employee::~Employee() {
points = 0;
work = 0;
health = 0;
}