Why do we need a constructor in OOP? - Stack Overflow
Apr 30, 2017 · Constructor is a special member function which has same name as class name and called whenever object of that class is created. They are used to initialize data field in object.
function - Purpose of a constructor in Java? - Stack Overflow
Nov 13, 2013 · What is the purpose of a constructor? I've been learning Java in school and it seems to me like a constructor is largely redundant in things we've done thus far. It remains to …
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 …
Can a struct have a constructor in C++? - Stack Overflow
45 As the other answers mention, a struct is basically treated as a class in C++. This allows you to have a constructor which can be used to initialize the struct with default values. Below, the …
What's the difference between an object initializer and a …
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 object after a …
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 …
Using 'this' keyword in Java constructors - Stack Overflow
Feb 21, 2017 · 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 …
Constructor of an abstract class in C# - Stack Overflow
Apr 8, 2011 · 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 …
What are the rules for calling the base class constructor?
Apr 4, 2021 · 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 …