The difference between Classes, Objects, and Instances
A class is a blueprint which you use to create objects. An object is an instance of a class - it's a concrete 'thing' that you made using a specific class. So, 'object' and 'instance' are the same thing, but the …
c++ - What is the difference between "typename" and "class" template ...
For naming template parameters, typename and class are equivalent. §14.1.2: There is no semantic difference between class and typename in a template-parameter. typename however is possible in …
templates - How to use Class<T> in Java? - Stack Overflow
However, what stumps me is the usage of Class<>. The java class Class is supposed to also take a template name, (or so I'm being told by the yellow underline in eclipse). I don't understand what I …
OOP Terminology: class, attribute, property, field, data member
Class variable is an attribute defined in a class of which a single copy exists, regardless of how many instances of the class exist. So all instances of that class share its value as well as its declaration. …
c++ - How do you create a static class? - Stack Overflow
The nearest thing is a class with only static methods and members. Using static methods will only limit you. What you want is, expressed in C++ semantics, to put your function (for it is a function) in a …
Calling parent class __init__ with multiple inheritance, what's the ...
A mixin is a class that's designed to be used with multiple inheritance. This means we don't have to call both parent constructors manually, because the mixin will automatically call the 2nd constructor for …
How can I access "static" class variables within methods?
In java, an entire class is compiled, making the namespace resolution real simple: any variables declared outside a method (anywhere) are instance (or, if static, class) variables and are implicitly …
How do I correctly setup and teardown for my pytest class with tests?
259 I am using selenium for end to end testing and I can't get how to use setup_class and teardown_class methods. I need to set up browser in setup_class method, then perform a bunch of …
Generate a class diagram from Visual Studio - Stack Overflow
Jun 19, 2013 · I would like to generate a class diagram with relations for my visual studio project. I opened my solution, added a new ModelingProject, added a new .classdiagram file but when i want …
What's the right way to overload operator== for a class hierarchy?
In general I think the base class should define a operator== overload (internally or via friend class doesn't matter) which check typeid equality and calls an abstract virtual "equals" function which the …