If you think about it, CoffeeScript compiling to Javascript means you can use coffeescript itself as a Java language. With the latest CoffeeScript (1.1.3) you might need to use Rhino directly because it triggers a JS implementation bug in the current jdk, but outside of that, you should be good to use the compiled js files to interact with Java code. :)
It is nowhere near stable, and it doesn't address some of the other shortcuts you point out that Coffeescript offers, but it does work as a proof-of-concept.
I wrote a transcompiler (just like CoffeeScript) to Java that supports multiple inheritance. It is very buggy and limited and does not allow many flexible formatting options, but it is still there and I would be more than happy if you checked it out or made a branch from it to improve it. I will probably add more features and fix many of the bugs, but for now, it at least works.
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是的，Xtend。这是 Eclipse 人员为您带来的一种新语言： http://www.eclipse.org/xtend/
没有多重继承（这将是对 Java 语义的根本性改变），但是有很多语法糖，就像 CoffeeScript 一样。
另请查看 Mirah：http://www.mirah.org/
Yep, Xtend. It's a new language brought to you by the Eclipse folks: http://www.eclipse.org/xtend/
No multiple inheritance (that would be a fundamental change to Java semantics), but lots of syntactic sugar, just like CoffeeScript.
Also take a look at Mirah: http://www.mirah.org/
如果您考虑一下，CoffeeScript 编译为 Javascript 意味着您可以将 CoffeeScript 本身用作 Java 语言。使用最新的 CoffeeScript (1.1.3)，您可能需要直接使用 Rhino，因为它会触发当前 jdk 中的 JS 实现错误，但除此之外，您应该善于使用编译后的 js 文件与 Java 代码进行交互。 :)
If you think about it, CoffeeScript compiling to Javascript means you can use coffeescript itself as a Java language. With the latest CoffeeScript (1.1.3) you might need to use Rhino directly because it triggers a JS implementation bug in the current jdk, but outside of that, you should be good to use the compiled js files to interact with Java code. :)
我为文本文件编写了一个预处理器，在缩进的地方引入了
{和}。我称之为：它远非稳定，而且它没有解决您指出的 Coffeescript 提供的其他一些快捷方式，但它确实可以作为概念验证。
I wrote a pre-processor for text files that introduces
{s and}s where there was indentation. I called it:It is nowhere near stable, and it doesn't address some of the other shortcuts you point out that Coffeescript offers, but it does work as a proof-of-concept.
我编写了一个支持多重继承的 Java 转编译器（就像 CoffeeScript）。它有很多错误和限制，并且不允许许多灵活的格式选项，但它仍然存在，如果您检查它或从中创建一个分支来改进它，我会非常高兴。我可能会添加更多功能并修复许多错误，但就目前而言，它至少有效。
https://github.com/Philoprogrammer/Java-With-Multiple-Inheritance
I wrote a transcompiler (just like CoffeeScript) to Java that supports multiple inheritance. It is very buggy and limited and does not allow many flexible formatting options, but it is still there and I would be more than happy if you checked it out or made a branch from it to improve it. I will probably add more features and fix many of the bugs, but for now, it at least works.
https://github.com/Philoprogrammer/Java-With-Multiple-Inheritance