java - FreeTTS java.lang.NullPointerException

Question

这个问题已经有答案了:

What is a NullPointerException, and how do I fix it? (12 个回答)

已关闭 5 年前。

我正在尝试制作一个文本转语音程序，但我总是得到这个:

Exception in thread "main" java.lang.NullPointerException
at FreeTTS.main(FreeTTS.java:7)

这是我的代码:

import com.sun.speech.freetts.Voice;
import com.sun.speech.freetts.VoiceManager;
public class FreeTTS {
    public static void main(String args[]) {
        VoiceManager vm = VoiceManager.getInstance();
        Voice voice = vm.getVoice("kevin16");
        voice.allocate();
        voice.speak("Hello World!");
        voice.deallocate();
    }
}

我该如何解决这个问题？

Answer 1

vm.getVoice("kevin16")

返回null。来自 Javadoc:

Returns: the Voice that has the same name as voiceName if one exists, else null

因此，未找到语音“kevin16”。