What are virtual destructors?
• Destructor and finalize Generally in C++ the destructor is called when objects gets destroyed. And one can explicitly call the destructors in C++. And also the objects are destroyed in reverse order that they are created in. So in C++ you have control over the destructors. In C# you can never call them, the reason is one cannot destroy an object. So who has the control over the destructor (in C#)? it’s the .Net frameworks Garbage Collector (GC). GC destroys the objects only when necessary. Some situations of necessity are memory is exhausted or user explicitly calls System.GC.Collect() method. Points to remember: 1. Destructors are invoked automatically, and cannot be invoked explicitly. 2. Destructors cannot be overloaded. Thus, a class can have, at most, one destructor. 3. Destructors are not inherited. Thus, a class has no destructors other than the one, which may be declared in it. 4. Destructors cannot be used with structs. They are only used with classes. 5. An instance becomes
