java file

File f=new File("E:\\gc.txt");
FileInputStream fis=new FileInputStream(f);


FileInputStream fis=new FileInputStream(new File(""))
FileOutputStream fos=new FileOutputStream(new File(""))


InputStreamReader isr=new InputStreamReader(new FileInputStream(new File("")))
OutputStreamWriter osw=new OutputStreamWriter(new FileOutputStream(new File("")))


BufferedReader br=new BufferedReader(new FileReader(""))
BufferedWriter bw=new BufferedWriter(new FileWriter(""))