java 文件操作 笔记

1.关于文件删除

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今天遇到个问题，有的时候可以删掉，有的时候不能删掉，最后究其原因是对文件进行操作的BufferedReader没有关闭，占用了文件的句柄，close()之后问题解决。

 

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2.File.delete()与deleteQuietly区别

deleteQuietly

 

The difference between File.delete() and this method are:

• A directory to be deleted does not have to be empty.
• No exceptions are thrown when a file or directory cannot be deleted.