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  1. What's the difference between an object initializer and a constructor?

    Apr 11, 2009 · A constructor is a defined method on a type which takes a specified number of parameters and is used to create and initialize an object. An object initializer is code that runs on an …

  2. function - Purpose of a constructor in Java? - Stack Overflow

    Nov 13, 2013 · 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 …

  3. What are the rules for calling the base class constructor?

    1189 Base class constructors are automatically called for you if they have no argument. If you want to call a superclass constructor with an argument, you must use the subclass's constructor initialization …

  4. When is it right for a constructor to throw an exception?

    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 …

  5. Constructor of an abstract class in C# - Stack Overflow

    Mar 15, 2015 · 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 …

  6. C++, What does the colon after a constructor mean?

    May 7, 2010 · 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 …

  7. Can I call a constructor from another constructor (do constructor ...

    Nov 21, 2008 · 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.

  8. How can I invoke asynchronous code within a constructor?

    Apr 16, 2017 · At the moment, I'm attempting to use async/await within a class constructor function. This is so that I can get a custom e-mail tag for an Electron project I'm working on. …

  9. Can a struct have a constructor in C++? - Stack Overflow

    In C++ the only difference between a class and a struct is that members and base classes are private by default in classes, whereas they are public by default in structs. So structs can have constructors, …

  10. c++ - Initializing fields in constructor - initializer list vs ...

    6 In your example code, the first one in constructor initialization and second one is assignment inside constructor body. Constructor initialization list is the best way to do all member initialization because …