Concatenation file contents

[Java Tip]

The readFile(...) method presented below reads a file and returns the string with the content. We have used StringBuffer to perform concatenation operations.

private static String readFile(String filename) throws IOException {
   String lineSep = System.getProperty("line.separator");
   BufferedReader br = new BufferedReader(new FileReader(filename));
   String nextLine = "";
   StringBuffer sb = new StringBuffer();
   while ((nextLine = br.readLine()) != null) {
     sb.append(nextLine);
     sb.append(lineSep);
   }
   return sb.toString();
}

[yogesh.sonvarsha]

good example !!!
i appreciate the above one.
Please look also for the differences in String,StringBuffer and StringBuilder classes.
Just trying to make things a bit flexible for you.