static
Using consts in static classes
UPDATE: This question was the subject of my blog on June 10th, 2010. Thanks for the great question! why was the decision made to not force constants to use the static modifier if they are considered static? Suppose constants are considered to be static. There are three possible choices: Make static optional: “const int x…” … Read more
Is there a way to make sure classes implementing an Interface implement static methods?
You cannot require classes to implement particular static methods through an interface. It just makes no sense in Java terms. Interfaces force the presence of particular non-static methods in the classes that implement the interface; that’s what they do. The easiest way is definitely to have some sort of factory class that produces instances of … Read more
Static method in Java can be accessed using object instance [duplicate]
A benefit of this is that it allows you to take an instance method and turn it into a static method without having to modify any existing code (other than the class) and thus allowing for backwards compatibility. I’ve found this useful as many times I’ve come across utility methods that can be made static … Read more
Java: getInstance vs Static
Static will not give you a singleton. Since there is no way of making a top-level class a singleton in Java, you have getInstance methods which will implement some logic to to be sure there is only one instance of a class. public class Singleton { private static Singleton singleton; private Singleton(){ } public static … Read more
Can one declare a static method within an abstract class, in Dart?
Dart doesn’t inherit static methods to derived classes. So it makes no sense to create abstract static methods (without implementation). If you want a static method in class Main you have to fully define it there and always call it like Main.name == EDIT == I’m sure I read or heard some arguments from Gilad … Read more
Initialize Static Array of Structs in C
Your approach is exactly right. This will work, and is a good way to avoid huge switch statements. You can’t define functions inline in C, they each must have a unique name. extern is what you want, not static. Change your body to be this: struct CARD cardDefinitions[] = { {0, 1, do_card0}, {1, 3, … Read more
How do I mock static methods in a class with easymock?
Not sure how to with pure EasyMock, but consider using the PowerMock extensions to EasyMock. It has a lot of cool functions for doing just what you need – https://github.com/jayway/powermock/wiki/MockStatic
Shouldn’t “static” patterns always be static?
Yes, the whole point of pre-compiling a Pattern is to only do it once. It really depends on how you’re going to use it, but in general, pre-compiled patterns stored in static fields should be fine. (Unlike Matchers, which aren’t threadsafe and therefore shouldn’t really be stored in fields at all, static or not.) The … Read more