?????塢??????
???????????????дЧ??????????????
????1??????????
????BufferedInputStream bis = new BufferedInputStream(new FileInputStream("xx"));
????BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream("xx"));
????2???????????
????BufferedReader br = new BufferedReader(new FileReader("xx.txt"));
????BufferedWriter bw = new BufferedWriter(new FileWriter("xx.txt"));
?????????????д???????????????????????弼????????дЧ???????????????????дЧ??????????????
????????File??????
????1??????
????boolean createNewFile()???????λ??????????????????????????????????????false??
?????????????????????????????????????????????????????????????
????boolean mkdir?????????????
????boolean mkdirs???? ???????????
????2???????
????boolean delete();???????????false?????????????????????????????false??
????void deleteOnExit??????????????????????????
????3???ж?
????boolean exists();??????????
????isFile():????????
????isDirectory();??????????
????isHidden();????????????
????isAbsolute();?????·??
????4????????
????getName();?????
????getPath();???·??
????getParent();?????·??
????getAbsolutePath();·??