interface

问题 Interface class: interface MyCustomInterface { fun get_msg( str: String) } SplashScreen Activity: class SplashActivity : AppCompatActivity(),MyCustomInterface { override fun get_msg(str: String) { } val socket=MysocketIO(this) } MySocketIO class where I added the data to interface from server: class MysocketIO(var mainActivity: SplashActivity) : Thread() { fun enable_data_event():Boolean { try { data_event_registered.set(true) socket!!.on(this.data_event_id, object : Emitter.Listener {

问题 I have a python application which I cant edit its a black box from my point of view. The python application knows how to process text and return processed text. I have another application written in Java which knows how to collect non processed texts. Current state, the python app works in batch mode every x minutes. I want to make the python processing part of the process: Java app collects text and request the python app to process and return processed text as part of a flow. What do you

问题 I have a python application which I cant edit its a black box from my point of view. The python application knows how to process text and return processed text. I have another application written in Java which knows how to collect non processed texts. Current state, the python app works in batch mode every x minutes. I want to make the python processing part of the process: Java app collects text and request the python app to process and return processed text as part of a flow. What do you

问题 This question already has answers here : Closed 8 years ago . Possible Duplicate: How do I create a list of objects that inherit from the same generic class with varying types? I'm using several objects where they are inherited from an abstract class. But to use the abstract class must be declara a generic datatype. I'm having problems because I need to have a list where contains a list of ProblemBase, although each one contains a different TResult datatype. public abstract class ProblemBase

问题 If I implement an interface on a form such as TMyForm = class(TForm, IMyInterface) , will the object free itself when there are no more interface references to it? It seems not to, although I couldn't work out how TForm is reference counted (if at all). I'm concerned about the form getting freed when an interface reference goes out of scope, but this does not seem to happen. I guess there are two parts to the question, firstly whether a form might get unexpectedly freed (the real question),

问题 I'm new at the CQRS pattern, but I'd like to understand why you should use two interfaces: public interface IQuery{} public interface ICommand{} Instead of just one interface (for example IExecutable, or whatever...) Than you also have one handler (for example IExecutionHandler, or whatever...) And if you want, you could still split it up into an ICommandExecutionHandler and a IQueryExecutionHandler Update: an attempt Next code is just an example of how I see it. It's possible that I'm

问题 This question already has answers here : Java 8: Interface with static methods instead of static util class (4 answers) Closed 4 years ago . For the past decade or so, I've been using the pattern below for my Java utility classes. The class contains only static methods and fields, is declared final so it can't be extended, and has a private constructor so it can't be instantiated. public final class SomeUtilityClass { public static final String SOME_CONSTANT = "Some constant"; private

问题 This question already has answers here : Java 8: Interface with static methods instead of static util class (4 answers) Closed 4 years ago . For the past decade or so, I've been using the pattern below for my Java utility classes. The class contains only static methods and fields, is declared final so it can't be extended, and has a private constructor so it can't be instantiated. public final class SomeUtilityClass { public static final String SOME_CONSTANT = "Some constant"; private

问题 I'm having trouble understanding when to use an interface as opposed to an abstract class and vice versa. Also, I am confused when to extend an interface with another interface. Sorry about the long post, but this is very confusing. Creating shapes seems like a popular starting point. Let's say we want a way to model 2D shapes. We know that each shape will have an area. What would be the difference between the following two implementations: with interfaces: public interface Shape { public

问题 I am going through a LitJSON library. In the code there are lots of segments like public class JsonData : IJsonWrapper, IEquatable<JsonData> #region ICollection Properties int ICollection.Count { get { return Count; } } #end region For a method I know how overriding/overloading works but in the example above the code reads: int ICollection.Count I'm not familiar with that format for a method signature. Is the coder trying to explicitly state its the ICollection.Count interface? Could you