Stuck in while loop with BufferedReader-java -

i'm @ lose why isn't working. i've had similar loops before , they've worked fine.

try{     text = new bufferedreader(new filereader(filename));      while ((lineoftext = text.readline()) != null){                 stringtokenizer tokens = new     stringtokenizer(lineoftext," , .;:\"&!?-_\n\t12345678910[]{}()@#$%^*/+-");                 while (tokens.hasmoretokens()){                     counttotalwordsindocument++;                     string word = tokens.nexttoken();                     counttotalcharactersinallwords = counttotalcharactersinallwords + word.length();                 }             }             text.close();         } catch (ioexception e) {             system.out.println("file not found");         }