当前目录中的java类文件？

Question

“java”如何在不设置类路径的情况下知道要执行的类文件。即，它是默认检查当前目录还是我们也需要为当前目录设置类路径。

Answer 1

它首先检查当前目录。如果找不到该类，它会在类路径中搜索该类。

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. [source]