need mini chat voice project.

import javax.speech.*;
import javax.speech.recognition.*;
import java.io.FileReader;
import java.util.Locale;

public class HelloWorld extends ResultAdapter {
   static Recognizer rec;

   // Receives RESULT_ACCEPTED event: print it, clean up, exit
   public void resultAccepted(ResultEvent e) {
      Result r = (Result)(e.getSource());
      ResultToken tokens[] = r.getBestTokens();

      for (int i = 0; i < tokens.length; i++)
         System.out.print(tokens[i].getSpokenText() + " ");
      System.out.println();

      // Deallocate the recognizer and exit
      rec.deallocate();
      System.exit(0);
   }

   public static void main(String args[]) {
      try {
         // Create a recognizer that supports English.
         rec = Central.createRecognizer(
                     new EngineModeDesc(Locale.ENGLISH));
         
         // Start up the recognizer
         rec.allocate();
   
         // Load the grammar from a file, and enable it
         FileReader reader = new FileReader(args[0]);
         RuleGrammar gram = rec.loadJSGF(reader);
         gram.setEnabled(true);
   
         // Add the listener to get results
         rec.addResultListener(new HelloWorld());
   
         // Commit the grammar
         rec.commitChanges();
   
         // Request focus and start listening
         rec.requestFocus();
         rec.resume();
      } catch (Exception e) {
         e.printStackTrace();
      }
   }
}