服务器端 Java 应用程序代码未编译 - 为什么？

Question

package uk.ac.hw.oncrpc;
import org.acplt.oncrpc.*;
import org.acplt.oncrpc.server.*;

import uk.ac.hw.quizgame.Game;

import java.io.IOException;

public class quizServer extends quizServerStub {
    private double sum;

    public quizServer() throws OncRpcException, IOException {
        //sum = 0.0; May used quiz globals here
    }


    @Override
    public void start_1(String arg1) {
        // TODO Auto-generated method stub

    }

    @Override
    public String requestQuestion_1() {
        // TODO Auto-generated method stub
        String question = "What is the atomic number of lithium?";

        return question;
    }

    @Override
    public String checkAnswer_1(String arg1) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public void quit_1(String arg1) {
        // TODO Auto-generated method stub

    }

    @Override
    public void help_1(String arg1) {
        // TODO Auto-generated method stub

    }

    public static void main(String[] args) {
        try { 
            quizServer server = new quizServer();
            System.out.println("Quiz ready");
            server.run();
        } catch ( Exception e ) { e.printStackTrace(System.out); }
    }

}

对于上面的代码，我从编译器得到以下内容

javac quizServer.java quizServer.java:2: error: package org.acplt.oncrpc does not exist import org.acplt.oncrpc.*; ^ quizServer.java:3: error: package org.acplt.oncrpc.server does not exist import org.acplt.oncrpc.server.*; ^ quizServer.java:5: error: package uk.ac.hw.quizgame does not exist import uk.ac.hw.quizgame.Game;
                        ^ quizServer.java:9: error: cannot find symbol public class quizServer extends quizServerStub {
                                ^   symbol: class quizServerStub quizServer.java:12: error: cannot find symbol
        public quizServer() throws OncRpcException, IOException {
                                   ^   symbol:   class OncRpcException   location: class quizServer quizServer.java:17: error: method does not override or implement a method from a  supertype
        @Override
        ^ quizServer.java:23: error: method does not override or implement a method from a  supertype
        @Override
        ^ quizServer.java:31: error: method does not override or implement a method from a  supertype
        @Override
        ^ quizServer.java:37: error: method does not override or implement a method from a  supertype
        @Override
        ^ quizServer.java:43: error: method does not override or implement a method from a  supertype
        @Override
        ^ quizServer.java:53: error: cannot find symbol
                        server.run();
                              ^   symbol:   method run()   location: variable server of

输入 quizServer 11 错误

但我不明白为什么这会导致错误？我在 Eclipse IDE 中没有收到这些错误，那么为什么它们会出现在这里？

如果这是一个愚蠢的问题，真的很抱歉。我很少使用命令编译，但在这种情况下我必须这样做，因为我需要一个命令来运行我的服务器代码，而另一个命令在同一台机器上运行我的客户端。

Answer 1

 package uk.ac.hw.quizgame does not exist import uk.ac.hw.quizgame.Game;

您的应用程序中是否有使用此名称的包？如果不是（或）删除相关代码（或）您需要将适当的 jar 添加到类路径。