Why do we need a constructor in OOP? - Stack Overflow
2014年10月17日 · 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 …
JSON.net: how to deserialize without using the default constructor?
Select the most specific private constructor so you can have multiple overloads, still without having to use attributes. Select the constructor marked with an attribute of a specific name - …
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 …
What's the difference between an object initializer and a …
2009年4月11日 · 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 …
C++, What does the colon after a constructor mean?
2010年5月7日 · 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 …
How can I invoke asynchronous code within a constructor?
2017年4月16日 · 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 …
Can I call a constructor from another constructor (do constructor ...
2008年11月21日 · 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.
c++ - Inheriting constructors - Stack Overflow
The compiler creates a default constructor (one with no arguments) and a default copy constructor (one with an argument which is a reference to the same type). But if you want a …
c# - Can constructors be async? - Stack Overflow
2011年11月16日 · 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 …