section of the tutorial on java source code and its function is to copy the file...

代码说明：

java教程上的一段源码，其功能是，复制文件。压缩包中含有一个被复制的原文件，还有产生复制功能的代码-section of the tutorial on java source code and its function is to copy the files. Compressed packet contains a copy of the original document, also have a functional copy of the code