默认情况下，类路径中的当前路径是`.`吗？ [英] Is the current path `.` in the classpath by default?

问题描述

第二个命令是否将当前路径添加为另一个搜索路径？

Do the second command add the current path as another path for searching?

javac -cp /home/tim/program_files/programming/java/junit-4.11.jar MyTest.java

javac -cp .:/home/tim/program_files/programming/java/junit-4.11.jar MyTest.java

这是用冒号分隔多个路径的正确方法吗？

Is it the correct way to separate multiple paths, by a colon?

默认情况下当前路径不总是在ClassPath中，因此不需要显式指定吗？

Isn't the current path always in ClassPath by default, and thus no need to explicitly specify?

谢谢。

推荐答案

来自Oracle的页面：

默认的类路径是当前目录。设置CLASSPATH变量或使用-classpath命令行选项会覆盖该缺省值，因此如果要在搜索路径中包含当前目录，则必须包含。。在新设置中。

The default class path is the current directory. Setting the CLASSPATH variable or using the -classpath command-line option overrides that default, so if you want to include the current directory in the search path, you must include "." in the new settings.

对Windows使用; 和：用于类Unix操作系统，作为多路径的分隔符。

Use ; for Windows and : for Unix-like operating systems as separator for multiple paths.

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