无法编译嵌套方法

Question

我的项目有两个程序。我想通过program2作为线程运行program1。我尝试在program1中扩展Thread类，但是我遇到了很多错误：

1. public void main(String[] args) {

  

Void是变量main的无效类型。

1. private static void start(Result result) {

  

Void是变量start的无效类型。

计划1：

public class HelloWorld extends Thread {

    private String[] args;         

    public HelloWorld(String[] args){
        this.args = args;
    }

        int i=1;
        String resultText;
            try {
                URL url;
                if (args.length > 0) {
                    url = new File(args[0]).toURI().toURL();
                }
                else {
                    url = HelloWorld.class.getResource("helloworld.config.xml");
                }

                ConfigurationManager cm = new ConfigurationManager(url);
                Recognizer recognizer = (Recognizer) cm.lookup("recognizer");
                Microphone microphone = (Microphone) cm.lookup("microphone");
                recognizer.allocate();
                if (microphone.startRecording()) {
                    while (true) {
                        System.out.println("Start speaking. Press Ctrl-C to quit.\n");           
                            Result result = recognizer.recognize();
                    }
                } 
                else {
                    System.out.println("Cannot start microphone.");
                    recognizer.deallocate();
                    System.exit(1);
                }

            }
            catch (IOException e) {
                System.err.println("Problem when loading HelloWorld: " + e);
                e.printStackTrace();
            }
        }

        private static void start_recognition(Result result) {
            if (result != null)
            {
                resultText = result.getBestFinalResultNoFiller();
                System.out.println("You said: " + resultText + "\n");
                if(resultText.equalsIgnoreCase("Command Prompt"))
                {
                    try{
                    Runtime.getRuntime().exec("cmd /c start cmd");
                    }
                    catch(Exception er){    
                    }
                }

            }

        }
    }
}

计划2：

public class App {
    public static void main(String[] args) {
        HelloWorld obj = new HelloWorld(args);
        obj.start();
    }
}

如何通过program2将program1作为线程运行？

建议后

代码更新：

public class HelloWorld extends Thread{
    public void run() {
        int i=1;
        String resultText;

            try {
                URL url;
                if (args.length > 0) { // Getting error in this line

  

args无法解析为变量。

                    url = new File(args[0]).toURI().toURL(); // And the same error in this line
                }
                else {
                    url = HelloWorld.class.getResource("helloworld.config.xml");
                }

                ConfigurationManager cm = new ConfigurationManager(url);
                Recognizer recognizer = (Recognizer) cm.lookup("recognizer");
                Microphone microphone = (Microphone) cm.lookup("microphone");
                recognizer.allocate();
                if (microphone.startRecording()) {
                    while (true) {
                        System.out.println("Start speaking. Press Ctrl-C to quit.\n");           
                            Result result = recognizer.recognize();
                            start_recognition(result);
                    }
                } 
                else {
                    System.out.println("Cannot start microphone.");
                    recognizer.deallocate();
                    System.exit(1);
                }

            }
            catch (IOException e) {
                System.err.println("Problem when loading HelloWorld: " + e);
                e.printStackTrace();
            }
    }

    private void start_recognition(Result result) {
        {
            if (result != null)
            {
                String resultText = result.getBestFinalResultNoFiller();
                System.out.println("You said: " + resultText + "\n");
                if(resultText.equalsIgnoreCase("Command Prompt"))
                {
                    try{
                    Runtime.getRuntime().exec("cmd /c start cmd");
                    }
                    catch(Exception er){    
                    }
                }

            }

        }

    }
}

Answer 1

在你的班级HelloWorld中，摆脱 public void main（String [] args）

它应该是这样的：

public class HelloWorld extends Thread {
public void run() {
    int i=1;
    String resultText;
        try {
            URL url;
            if (args.length > 0) {
                url = new File(args[0]).toURI().toURL();
            }
            else {
                url = HelloWorld.class.getResource("helloworld.config.xml");
            }

有关详细信息，请参阅此链接：Java Class