Page 127 - DCAP404 _Object Oriented Programming

Object-oriented Programming

Notes *num1 = ident1;
*num2 = ident2;
}

~Calculator()
{
delete num1;
delete num2;
}

int add ()
{
int sum = *num1 + *num2;
return sum;
}
};
int main()
{
Calculator myObject(2,3);

int result = myObject.add();
cout << result;

return 0;
}
The destructor function is automatically called, without you knowing, when the program no
longer needs the object. If you defined a destructor function as in the above code, it will be
executed. If you did not define a destructor function, C++ supplies you one, which the program
uses unknown to you. However, this default destructor will not destroy dynamic objects.

Notes An object is destroyed as it goes out of scope.

Self Assessment

Fill in the blanks:
1. A constructor is a special method that is created when the …………………… is created or
defined.
2. A constructor is declared without a return value, that also excludes………………..
3. You cannot declare a constructor as virtual or static, nor can you declare a constructor as
…………………, volatile, or const volatile.

120 LOVELY PROFESSIONAL UNIVERSITY