is it ok to have empty destructor?

Question

Rajanikant Hawaldar · Answer

When a class contains a destructor, an entry is created in the Finalize queue. When the destructor is called, the garbage collector is invoked to process the queue. If the destructor is empty, this just causes a needless loss of performance.

Uday Dodiya · Answer

Yes, that empty destructor is the same as the automatically-generated one. I've always just let the compiler generate them automatically; I don't think it's necessary to specify the destructor explicitly unless you need to do something unusual: make it virtual or private. Refer Following Link For More https://stackoverflow.com/questions/1025313/will-an-empty-constructor-or-destructor-do-the-same-thing-as-the-generated-one#:~:text=Since%20no%20destructor%20is%20defined,defining%20an%20empty%20destructor%2C%20ie.

Sachin Singh · Answer

Agreed with all, There is no need of destructor. You can use the using block or can implement the finalize pattern if needed instead.

Vishal Yelve · Answer

Hi Shaan, Destructors are the techniques to remove instances of classes as soon as the class is closed. It is a very useful technique to clean memory and remove all the instances of the program. Using destructors you can release memory if your program is using the expensive external resource as files, images, etc. Note: "You should not use empty destructor in the program. When you use destructor, an entry is created in Finalize queue. Therefore, when the destructor is called, the garbage collector is invoked to process the queue. If you have used an empty destructor, it causes unnecessary system performance issues." When a Destructor is called it automatically invokes Finalize Method. Finalize method in C# is used for cleaning memory from unused objects and instances. So, when you call the destructor, it actually translates into the following code. protected override void Finalize() { try { // Cleanup statements... } finally { base.Finalize(); } } The programmer has no control over when the destructor will be executed because it is defined by the garbage collector. The garbage collector automatically checks for objects that are no longer referenced or are no longer being used by the application. When the garbage collector found such objects, it removes them automatically and frees up memory. Actually, C# doesn’t require explicit memory management because the .Net Framework garbage collector automatically does it for you. using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace Destructor { class first { public first() { Console.WriteLine("First Object Created. Press Enter to destroy it."); } ~first() { Console.WriteLine("Destroying First Object"); Console.ReadLine(); } } class Program { static void Main(string[] args) { first ft = new first(); Console.ReadLine(); } } }

is it ok to have empty destructor?

Answers (4)