使用Java RMI时是否有约定在变量名中使用美元符号$? [英] Is there a convention, when using Java RMI, to use the dollar sign $ in a variable name?

问题描述

我意识到它是变量名的有效部分，但我从未见过变量名之前曾实际使用符号$.

I realize that it is a valid part of a variable name, but I've never seen variable names actually use the symbol $ before.

Java教程说:

此外，按照惯例，美元符号字符根本不会使用.您可能会发现在某些情况下，自动生成的名称将包含美元符号，但您的变量名称应始终避免使用它.

Additionally, the dollar sign character, by convention, is never used at all. You may find some situations where auto-generated names will contain the dollar sign, but your variable names should always avoid using it.

但是，由于这是针对Java初学者的，所以我想知道在分布式世界中，$是否具有特殊含义.

However, since this is geared toward Java beginners, I'm wondering if in the distributed world, the $ lives on with a special meaning.

推荐答案

我唯一见过的是

• 在生成的代理类中，它们经常在其方法，变量和类名中使用$
• 内部->外部类综合访问器方法，我认为在方法名称中也使用$
• 内部类名称(如JVM所见)

• in generated proxy classes, which frequently use $ in their method, variable and class names
• inner->outer class synthetic accessor methods, which I think also use a $ in the method name
• inner class names (as seen by the JVM)

不过，我从未见过它在源代码中使用过，而且我也没有想到这样做的任何原因. $几乎是所生成代码的明确指示.

I've never seen it used in source code, though, and I can't think of any reason for doing so. The $ is almost a definitive indicator of generated code.

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