C＃V5接口的Java实例 [英] C# vs JAVA instance of Interface

问题描述

我不知道我怎么想去了解我的问题。这是关于Android可以实例化接口。我想在C＃中的事。现在，我敢肯定，对于Java和C＃的规则是，你不能创建抽象和接口的实例作为被说。

I am not sure how am I suppose to go about my question. It is about Android can Instantiate Interface. I am trying to do in C#. Now I am pretty sure that the rules for both Java and C# is you can't create an Instance of abstract and Interface as being said.

不过，我真的想了解Android如何做到这一点的做法。

But I would really like to know how Android does this practice.

在Android中，你可以做到这一点。

In Android you can do this.

public interface Checkme{
    void Test();
    void Test2();
}


public void myFunc(Checkme my){
  //do something
}

// Now this is the actual usage.

public void Start(){

   myFunc(new Checkme(){
       @Override
       public void Test()
       {


       }
       @Override
       public void Test2()
       {


       }
    });

}

事实上，一旦你按Enter键新Checkme（）您将自动获得该接口的覆盖方法。如自动C＃实现接口的方法。

Actually once you press Enter on new Checkme() You will automatically get the Override methods of the Interface. Like auto Implement method of an Interface in C#.

我希望我的问题是有意义的。

I hope my question make sense.

推荐答案

C＃不支持匿名自动实现的接口，因为它的代表的：

C# doesn't support anonymously auto-implemented interfaces because it has delegates:

public void Foo(Func<string> func, Action action) {}

// call it somewhere:
instance.Foo(() => "hello world", () => Console.WriteLine("hello world"));

通过代表可以填补这一空白，它甚至比实现具有匿名类接口，功能更强大。

With delegates you can fill the gap and it can be even more powerful than implementing interfaces with anonymous classes.

了解更多关于代表。

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