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(""))
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(""))
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