Best way to read in File of characters...

Question

I have a file whose size is roughly 16k-20k.
I need to read in the file and perform some logic based on each character of the file.
Is wrapping a FileReader within a BufferedReader the most efficient way to do this? Or is there some nio package or custom buffer stuff I can do to speed it up?
thanks

Answer 1

I gues if you have to check the charactars multiple times putting the file in a string or
stringbuffer would be faster. If you read it only once you might use a bufferedreader.
I'm not verry experienced but think that the charset is importaint, here is some code
on how I red Japanese text. I changed the getBytes to create the string in ASCII.
          try{
               File f = new File("somefile");
               FileInputStream fi = new FileInputStream(f);
               byte[] buf = new byte[1024];
               int len;
               int i = 0;
               ByteArrayOutputStream bos = new ByteArrayOutputStream();
               while ((len = fi.read(buf)) > 0) {
                    bos.write(buf, 0, len);
               byte[] data = bos.toByteArray();
//               String dataString = new String(data,"ASCII");
               fi.close();
          }catch(Exception e){
               e.printStackTrace();
          }