Automatic Destruction

Question

why is the object dog automatically destroyed? Does this happen when the program has finished running? where is the command to destroy the object?

Answer 1

An object is destroyed once its scope has ended. Objects and variables only last for the code block they're inside (a method, if/for/while, class, etc.).
Ex: If the dog object were declared inside a method, once that method ended, that dog object would no longer be usable and would be destroyed.

Answer 2

I believe this is something the C# language is known for - its automatic garbage disposal