Would you really want to have a constructor that has 20 different properties - especially when you only want to actually define one or two? Secondly, default values don't really work if you only want to configure properties at the end of the constructor list (but not the beginning).
The constructor's job is to bring the object into a usable state. There are basically two schools of thought on this. One group favors two-stage construction. The constructor merely brings the object into a sleeper state in which it refuses to do any work. There's an additional function that does the actual initialization. I've never understood the reasoning behind this approach. I'm firmly in ...
When calling a constructor it actually allocates memory, either from the stack or from the heap. So calling a constructor in another constructor creates a local copy.
An abstract class constructor c# code example will be explained. But, the next question can also be arises, as if we cannot instantiate (construct an object using new) an abstract class, then what for a constructor is in an abstract class or why should we use a constructor in abstract class?
In summary, if your single-parameter constructor converts the parameter into an object of your class, you probably don't want to use the explicit keyword. But if you have a constructor that simply happens to take a single parameter, you should declare it as explicit to prevent the compiler from surprising you with unexpected conversions.
One can then avoid calling the constructor except through factory methods which in case of exception will call Dispose on the partially-created object. This protection will allow for cleanup of IDisposables created in derived-class initializers if the main-class constructor fails after "smuggling out" a reference to the new object.
A constructor is used to create an instance of the class Card. And you'll need to call it 52 times to have 52 cards: new Card(1, "hearts"), etc. Now each instance of Player (you also need a constructor for that), can have a List (constructed using a constructor) of cards. Read an introductory Java book, or the official Java tutorial.
Please guide me is among best practices to use constructor with for list initialization? How to assign values to list using a constructor, so if no value passed a default will be used?
Constructor acts very similarly to a method returning the constructed type. And async method can't return just any type, it has to be either “fire and forget” void, or Task. If the constructor of type T actually returned Task<T>, that would be very confusing, I think. If the async constructor behaved the same way as an async void method, that kind of breaks what constructor is meant to be ...
An initializer list is how you pass arguments to your member variables' constructors and for passing arguments to the parent class's constructor. If you use = to assign in the constructor body, first the default constructor is called, then the assignment operator is called.
