overriding

What is the significance of the two keywords Shadows and Overrides ? What they do and for which context is one or the other preferable? I wouldn't consider Shadows to really be an OOP concept. Overrides indicates that you are providing new or additional functionality for a method/property etc that was declared in an ancestor class. Shadows really tricks the compiler into thinking that the parent method/property etc does not even exist. I have no use for Shadows. Stick to Overrides. These types of helpful little "features" that VB has provided for years always end up causing you grief at some

Differentiate between function overloading and function overriding in C++? You are putting in place an overloading when you change the original types for the arguments in the signature of a method. You are putting in place an overriding when you change the original definition of a method. Prasad G Overloading a method (or function) in C++ is the ability for functions of the same name to be defined as long as these methods have different signatures (different set of parameters). Method overriding is the ability of the inherited class rewriting the virtual method of the base class. a) In

This question already has an answer here: When do you use Java's @Override annotation and why? 27 answers (Newbie to Java, old time C# guy.) I have noticed a lot of the use of @Override in Android example code. I thought that all Java methods were by default "Virtual"? What then does @Override do? Example: private class HelloWebViewClient extends WebViewClient { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { view.loadUrl(url); return true; } } It's an annotation that you can use to tell the compiler and your IDE that you intend the method that has that annotation

I'm pretty confused between some concepts of OOP: virtual , override , new and sealed override . Can anyone explain the differences? I am pretty clear that if the derived class method is to be used, one can use the override keyword so that the base class method will be overriden by derived class. But I'm not sure about new , and sealed override . CharithJ The virtual keyword is used to modify a method, property, indexer or event declaration, and allow it to be overridden in a derived class. For example, this method can be overridden by any class that inherits it: Use the new modifier to

In Java, for example, the @Override annotation not only provides compile-time checking of an override but makes for excellent self-documenting code. I'm just looking for documentation (although if it's an indicator to some checker like pylint, that's a bonus). I can add a comment or docstring somewhere, but what is the idiomatic way to indicate an override in Python? UPDATE (23.05.2015): Based on this and fwc:s answer I created a pip installable package https://github.com/mkorpela/overrides From time to time I end up here looking at this question. Mainly this happens after (again) seeing the

I am getting a compile time error with Java: MyClass is not abstract and does not override abstract method onClassicControllerRemovedEvent( wiiusej.wiiusejevents.wiiuseapievents.ClassicControllerRemovedEvent) in wiiusejevents.utils.WiimoteListener) Here is the class: import wiiusej.WiiUseApiManager; import wiiusej.Wiimote; import wiiusej.wiiusejevents.physicalevents.ExpansionEvent; import wiiusej.wiiusejevents.physicalevents.IREvent; import wiiusej.wiiusejevents.physicalevents.MotionSensingEvent; import wiiusej.wiiusejevents.physicalevents.WiimoteButtonsEvent; import wiiusej.wiiusejevents