Destructor

A destructor works opposite to constructor; it destructs the objects of classes. It can be defined only once in a class. Like constructors, it is invoked automatically.

A destructor is defined like constructor. It must have same name as class. But it is prefixed with a tilde sign (~).

 When is destructor called?
A destructor function is called automatically when the object goes out of scope: 

• the function ends 
• the program ends 
• a block containing local variables ends 

 Example

 

    #include <iostream>  
    using namespace std;  
    class Employee  
     {  
       public:  
            Employee()    
            {    
                cout<<"Constructor Invoked"<<endl;    
            }    
            ~Employee()    
            {    
                cout<<"Destructor Invoked"<<endl;    
            }  
    };  
    int main(void)   
    {  
        Employee e1; //creating an object of Employee   
        Employee e2; //creating an object of Employee  
        return 0;  
    }   

Output