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 be seen if a …
What's the difference between an object initializer and a constructor?
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 constructor …
c# - AutoMapper error: MapperConfiguration does not contain …
Aug 16, 2025 · AutoMapper error: MapperConfiguration does not contain constructor that takes 1 arguments Asked 7 months ago Modified 7 months ago Viewed 3k times
What are the rules for calling the base class constructor?
1190 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 …
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, …
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 …
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 …
Can constructors throw exceptions in Java? - Stack Overflow
Sep 3, 2009 · Yes, constructors can throw exceptions. Usually this means that the new object is immediately eligible for garbage collection (although it may not be collected for some time, of …
C++: Where to initialize variables in constructor - Stack Overflow
If you do not mention a variable in a class's initialization list, the constructor will default initialize it before entering the body of the constructor you've written. This means that option 2 will lead to each …
Constructor of an abstract class in C# - Stack Overflow
Apr 8, 2011 · An abstract class can have constructor and destructor. An abstract class cannot be a sealed class because the sealed modifier prevents a class from being inherited.