java中的接口和@interface有什么区别? [英] What's the difference between interface and @interface in java?

问题描述

自从上世纪 90 年代末在大学期间使用 JBuilder 以来，我一直没有接触过 Java，所以我有点脱节 - 无论如何，我本周一直在从事一个小型 Java 项目，并使用 Intellij IDEA作为我的 IDE，改变了我常规 .Net 开发的节奏.

I haven't touched Java since using JBuilder in the late 90's while at University, so I'm a little out of touch - at any rate I've been working on a small Java project this week, and using Intellij IDEA as my IDE, for a change of pace from my regular .Net development.

我注意到它支持添加接口和@interfaces，什么是@interface，它与普通接口有什么不同?

I notice it has support for adding interfaces and @interfaces, what is an @interface, and how does it differ from a normal interface?

public interface Test {
}

对比

public @interface Test {
}

我进行了一些搜索，但找不到大量有关@interface 的有用信息.

I've done a bit of searching, but couldn't find a great deal of useful info referring to @interface.

推荐答案

@ 符号表示注解类型定义.

The @ symbol denotes an annotation type definition.

这意味着它不是真正的接口，而是一种新的注释类型——用作函数修饰符，例如@override.

That means it is not really an interface, but rather a new annotation type -- to be used as a function modifier, such as @override.

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