如果你把光标放在一个方法上，然后按CTRL+SHIFT+I将弹出方法实现。如果方法是一个接口方法，那么你可以使用上下箭头来循环实现:

Map<String, Integer> m = ...
m.contains|Key("Wibble");

|的位置(例如)您的光标所在的位置。

有很多事情是idea用更简单的方法解决的，或者没有等价的方法:

Autocomplete actions: Doing ctrl+shift+a you can call any idea action from the keyboard without remembering its key combination... Think about gnome-do or launchy in windows, and you've got the idea! Also, this feature supports CamelCasing abbreviations ;) Shelf: Lets you keep easily some pieces of code apart, and then review them through the diff viewer. Local history: It's far better managed, and simpler. SVN annotations and history: simpler to inspect, and also you can easily see the history only for such a part of a whole source file. Autocomplete everywhere, such as the evaluate expression and breakpoint condition windows. Maven integration... much, much simpler, and well integrated. Refactors much closer to the hand, such as loops insertion, wrapping/casting, renaming, and add variables. Find much powerful and well organized. Even in big projects Much stable to work with several branches of a big project at the same time (as a former bugfixer of 1.5Gb by branch sources, and the need to working in them simultaneously, idea shown its rock-solid capabilities) Cleaner and simpler interface... And, simpler to use only with the keyboard, letting apart the need of using the mouse for lots of simple taks, saving you time and giving you more focus on the code... where it matters!

现在，作为开源的…Idea的用户群将呈指数级增长。

多得多的重构。

结构搜索和替换。

例如，搜索如下内容:

  System.out.println($string$ + $expr$);

其中$string$是一个文字，$expr$是my.package.and.Class类型的表达式，然后替换为:

  $expr$.inspect($string$);

从Maven POM打开一个项目。 只需选择“打开项目…”导航到你的顶级pom.xml，并按Enter:) NetBeans现在也有这个特性。

VIM模拟器。这个插件在IDEA中编辑文件时提供了几乎完整的vi/vim/gvim仿真。 支持以下功能: 运动键 删除/修改 插入模式命令 标志着 寄存器 VIM撤销/重做 可视模式命令 一些Ex命令 Some:设置选项 用于搜索和搜索/替换的完整VIM正则表达式 宏 测量 命令行历史记录 搜索历史记录 跳转列表 VIM提供帮助

关于这个插件的一些评论来自http://plugins.jetbrains.net/plugin/?id=164

I can't see ever going back to any other ide because of this plugin.. Best of both worlds... Awesome!. that's what i was lacking in all IDEs.