java语言中的语音识别

我想在我的项目中使用语音识别，我发现了这段代码，但当我运行它时，我得到了一个错误，它是：

请你们中的一位帮我解决这个问题好吗

这是我使用的服务器代码：

package newpackage;

import java.util.logging.Level;
import java.util.logging.Logger;
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();
    try {
          // Deallocate the recognizer and exit
          rec.deallocate();
    } catch (EngineException ex) {
          Logger.getLogger(HelloWorld.class.getName()).log(Level.SEVERE, null, ex);
    } catch (EngineStateError ex) {
          Logger.getLogger(HelloWorld.class.getName()).log(Level.SEVERE, null, ex);
    }
    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();
          // System.out.println("the problem");
    }
  }
}

package-newpackage；
导入java.util.logging.Level；
导入java.util.logging.Logger；
导入javax.speech.*；
导入javax.speech.recognition.*；
导入java.io.FileReader；
导入java.util.Locale；
公共类HelloWorld扩展ResultAdapter{
静态识别器；
//接收结果\u已接受事件：打印、清理、退出
公共无效结果接受（结果事件e）{
结果r=（结果）（e.getSource（））；
ResultToken令牌[]=r.getBestTokens（）；
for（int i=0；i

如果（rec！=null）{
系统输出打印项次（rec）；
}
否则{
System.out.println（“rec为空”）；
//重写

// Create a recognizer that supports English.
      rec = Central.createRecognizer(
              new EngineModeDesc(Locale.ENGLISH));

如下

            SynthesizerModeDesc desc = new SynthesizerModeDesc(
            null,          // engine name
            "general",     // mode name
            Locale.US,     // locale
            null,          // running
            null);         // voice

     synth = Central.createSynthesizer(desc);

现在我看到了错误。我也应该看到，但我对缩进和结尾的两个大括号太困惑了。@Alessandro Minoccheri，我可以在那里下载我需要的所有libraries.jar
// Create a recognizer that supports English.
      rec = Central.createRecognizer(
              new EngineModeDesc(Locale.ENGLISH));

            SynthesizerModeDesc desc = new SynthesizerModeDesc(
            null,          // engine name
            "general",     // mode name
            Locale.US,     // locale
            null,          // running
            null);         // voice

     synth = Central.createSynthesizer(desc);