java - 错误: Java Virtual Machine Launcher.找不到主类

Question

我的程序运行完美。但是，突然log cat 中开始出现许多错误。重新启动 Eclipse 后，我无法运行该程序。

它显示的错误是:Java 虚拟机启动器。找不到主类:服务器。程序将退出。

只有这个程序没有运行。我能够运行所有其他项目和程序。

public class server {

    private static ServerSocket serverSocket;
    private static Socket clientSocket;
    private static InputStreamReader inputStreamReader;
    private static BufferedReader bufferedReader;
    private static String message;

    public static void main(String[] args) {

        try {
            serverSocket = new ServerSocket(4444);  //Server socket

        } catch (IOException e) {
            System.out.println("Could not listen on port: 4444");
        }

        System.out.println("Server started. Listening to the port 4444");

        while (true) {
            try {

                clientSocket = serverSocket.accept();   //accept the client connection
                inputStreamReader = new InputStreamReader(clientSocket.getInputStream());
                bufferedReader = new BufferedReader(inputStreamReader); //get the client message
                message = bufferedReader.readLine();

                System.out.println(message);
                inputStreamReader.close();
                clientSocket.close();

            } catch (IOException ex) {
                System.out.println("Problem in message reading");
            }
        }

    }
}

Answer 1

没有类Server，因为您的类名为server

public class server {
    ...

类名应始终以大写字母开头。比使用CamelCase 。这是常见的命名约定