Shulou(Shulou.com)06/03 Report--

This article mainly introduces "how to master the IO stream of java". In the daily operation, I believe that many people have doubts about how to master the IO stream of java. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts of "how to master the IO stream of java"! Next, please follow the editor to study!

File API

Q: can the File class be used for directory operations?

A: yes.

The File object itself can be a directory. You can create a directory by calling file.mkdirs ().

Q: can I delete a directory by calling file.delete () directly?

A: if it is a file or an empty directory, you can delete it directly.

However, if there are files or subdirectories in the directory, they must be deleted recursively.

Private static boolean deleteDir (File dir) {if (dir.isDirectory ()) {String [] children = dir.list (); / / Recursively delete for under a subdirectory in the directory (int iTuno; I)

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