Why do we need a constructor in OOP? - Stack Overflow
Oct 17, 2014 · The constructor IS the "Initialize function" Rather than calling two functions object = new Class; object.initialize(); You just call object = new Class(); The logic inside the …
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 …
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 …
Using 'this' keyword in Java constructors - Stack Overflow
I am confused with the this keyword in Java. If a class has two constructors and we use the this keyword in some method, the object represented by this is instantiated using which of the two …
Can a struct have a constructor in C++? - Stack Overflow
Can a struct have a constructor in C++? I have been trying to solve this problem but I am not getting the syntax.
What are the rules for calling the base class constructor?
Apr 4, 2021 · What are the C++ rules for calling the base class constructor from a derived class? For example, I know in Java, you must do it as the first line of the subclass constructor (and if …
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. …
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 …
Is it possible to have a constructor template with no parameters?
I wish to have a non-template class with a template constructor with no arguments. As far as I understand, it's impossible to have it (because it would conflict with the default constructor - …
Spring @Autowired on Properties vs Constructor - Stack Overflow
And this is understandable: the constructor injection happens at very early stage of Spring Bean initialization, in createBeanInstance method of Bean Factory, while @Autowired -based …