java - "file does not contain class api.configuration"是什么意思？

Question

请记住，我对 Java 完全陌生。我不知道“类”之类的东西是什么。

当尝试编译(javac -g Sphinx.java)此代码时:

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;    
import java.io.PrintWriter;

import api.Configuration;
import api.SpeechResult;
import api.LiveSpeechRecognizer;

public class Sphinx {
    public static void main(String[] args) throws Exception {

        Configuration configuration = new Configuration();

        configuration.setAcousticModelPath("models/en-us/en-us");
        configuration.setDictionaryPath("models/en-us/cmudict-en-us.dict");
        configuration.setLanguageModelPath("models/en-us/en-us.lm.bin");

        PrintWriter pw = new PrintWriter(new PrintWriter("status.txt"));
        LiveSpeechRecognizer recognizer = new LiveSpeechRecognizer(configuration);
        recognizer.startRecognition(true);
        pw.print("running");
        SpeechResult result = recognizer.getResult();
        recognizer.stopRecognition();
        pw.print("stopped");
        pw.close();

        PrintWriter pw2 = new PrintWriter(new PrintWriter("result.txt"));
        pw2.println(result);
        pw2.close();
    }
}

我收到此错误:

Sphinx.java:8: error: cannot access Configuration
import api.Configuration;
          ^
  bad source file: .\api\Configuration.java
    file does not contain class api.Configuration
    Please remove or make sure it appears in the correct subdirectory of the sourcepath.

我不太明白“文件不包含类 api.configuration”是什么意思，或者如何修复它。

Answer 1

查看您的错误消息，您的 ./api/Configuration.java 文件似乎缺少包声明。

您能否确保在 ./api/Configuration.java 中第一行有

package api;

这告诉编译器您的文件可以通过 api 包访问，而不是默认包。