public static void readAsString() {
             String lCurentDir = System.getProperty("user.dir")+"/aa.txt";
             FileReader fr;
            try {
                fr = new FileReader(lCurentDir);
                 BufferedReader br = new BufferedReader(fr);
                    String s="";
                    s=br.readLine();
                    System.out.println(s);
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
               

        }