Java IO Read and write operations

Read of file: public static void Duqu (String path) throws ioexception{file file=new file (path); FileInputStream fis=new fileinputstream (file); InputStreamReader isr=new inputstreamreader (FIS, "gb2312"); BufferedReader br=new BufferedReader (ISR); StringBuffer buf=new StringBuffer (); String Str=null;while ((Str=br.readline ())!=null) {buf.append (str); Buf.append ("\ r \ n");} System.out.println (Buf.tostring ()); Br.close ();}          Write to file: public static void Write (string path, string content) {string s = new String ();                    string S1 = new String ();                            try {file F = new File (path);              if (f.exists ()) {System.out.println ("file exists");                  } else {System.out.println ("file does not exist, creating ..."); if (F.createnewfile ()) {System.out.println ("file created successfully!                  "); } else {System.out.println ("File creation failed!                  "); }} BuffeRedreader input = new BufferedReader (new FileReader (f));              while ((s = input.readline ()) = null) {S1 + = s + "/n";              } input.close ();              S1 + = content;              BufferedWriter output = new BufferedWriter (new FileWriter (f));              System.out.println ("File contents:" + S1);              Output.write (S1);          Output.close ();          } catch (Exception e) {e.printstacktrace (); }      }

　　

Java IO Read and write operations