code: import edu.stanford.nlp.util.logging.Redwood;
  
  import java.io.BufferedReader;
  import java.io.FileReader;
  import java.util.List;
  
  import edu.stanford.nlp.ling.SentenceUtils;
  import edu.stanford.nlp.ling.TaggedWord;
  import edu.stanford.nlp.ling.HasWord;
  import edu.stanford.nlp.tagger.maxent.MaxentTagger;
  
  public class TaggerDemo  {
  
    /** A logger for this class */
    private static Redwood.RedwoodChannels log = Redwood.channels(TaggerDemo.class);
  
    private TaggerDemo() {}
  
    public static void main(String[] args) throws Exception {
      if (args.length != 2) {
        log.info("usage: java TaggerDemo modelFile fileToTag");
        return;
      }
      MaxentTagger tagger = new MaxentTagger(args[0]);
      List<List<HasWord>> sentences = MaxentTagger.tokenizeText(new BufferedReader(new FileReader(args[1])));
      for (List<HasWord> sentence : sentences) {
        List<TaggedWord> tSentence = tagger.tagSentence(sentence);
        System.out.println(SentenceUtils.listToString(tSentence, false));
      }
    }
  
  }
  