Java has static nested classes but it sounds like you’re looking for a top-level static class. Java has no way of making a top-level class static but you can simulate a static class like this: Declare your class final – Prevents extension of the class since extending a static class makes no sense Make the … Read more
If you’re looking for a way of applying the static keyword to a class, like you can in C# for example, then you won’t be able to without using Managed C++. But the looks of your sample, you just need to create a public static method on your BitParser object. Like so: BitParser.h class BitParser … Read more
You can’t create a top level static class; that’s what the compiler is trying to tell you. Also have a look at the answer here as to why this is the case. The gist is: What the static boils down to is that an instance of the class can stand on its own. Or, the … Read more
You can’t @Autowired a static field. But there is a tricky skill to deal with this: @Component public class StatisticLogger { private static Dao dao; @Autowired private Dao dao0; @PostConstruct private void initStaticDao () { dao = this.dao0; } } In one word, @Autowired a instance field, and assign the value to the static filed … Read more
It’s not just Android developers… A non-static inner class always keeps an implicit reference to the enclosing object. If you don’t need that reference, all it does is cost memory. Consider this: class Outer { class NonStaticInner {} static class StaticInner {} public List<Object> foo(){ return Arrays.asList( new NonStaticInner(), new StaticInner()); } } When you … Read more
Don’t use a static constructor, but a static initialization method: public class A { private static string ParamA { get; set; } public static void Init(string paramA) { ParamA = paramA; } } In C#, static constructors are parameterless, and there’re few approaches to overcome this limitation. One is what I’ve suggested you above.
Once a type initializer has failed once, it is never retried. The type is dead for the lifetime of the AppDomain. (Note that this is true for all type initializers, not just for types with static constructors. A type with static variables with initializer expressions, but no static constructors, can exhibit subtle differences in the … Read more
Firstly, a comment on an answer asked about what “static” means. In C# terms, “static” means “relating to the type itself, rather than an instance of the type.” You access a static member (from another type) using the type name instead of a reference or a value. For example: // Static method, so called using … Read more
Solution is to have a static reference to the LoggerFactory in a utility static class initialized on startup: /// <summary> /// Shared logger /// </summary> internal static class ApplicationLogging { internal static ILoggerFactory LoggerFactory { get; set; }// = new LoggerFactory(); internal static ILogger CreateLogger<T>() => LoggerFactory.CreateLogger<T>(); internal static ILogger CreateLogger(string categoryName) => LoggerFactory.CreateLogger(categoryName); } … Read more
With the struct solution, there’s nothing to stop some other code doing new PredefinedStrings(), which won’t do anything bad, but is something it’s semantically confusing to allow. With a static class the compiler will forbid creation for you. And it goes without saying that static class is the preferred way of providing constants in the … Read more