// File (or directory) with old name
File file = new File("oldname");
// File (or directory) with new name
File file2 = new File("newname");
// Rename file (or directory)
boolean success = file.renameTo(file2);
if (!success) {
// File was not successfully renamed
}
经试用是可以更改文件和文件夹名字的,其它文件夹无论有没有子文件夹或文件
其实他还具有移动文件和文件夹的作用,不过,如果是文件夹,只能在同一个盘符下进行,我测试的是这样,不知为什么!