为什么要配置classpath环境变量？ 一是为了方便引用，比如，JDK安装在C:\Program Files\Java\jdk1.5.0_17目录里，则设置JAVA_HOME为该目录 ...

为什么要配置classpath变量？ 配置classpath变量，才能使得java解释器知道到哪里去找标准类库，这些标准类库是别人已经写好了的，我们只管使用。比如我们常用到java.lang包中的类，在配置classpath变量后被设为默认导入，所以在写程序时就不用import这个包了。

In a previous blog posting, I listed some “everyday problems” Java developers will often face and included some ideas and links related to addressing these issues. One of the focal points of that post ...

Groovy‘s RootLoader is a handy class that can be used to encapsulate a Groovy script’s reference to external classpath dependencies within the script itself. The documentation for RootLoader states, ...