如何从JDA中的方法访问变量

Question

我正在制作一个 Discord 机器人，但遇到了困难。我在同一个文件中有 2 个方法。

方法一：

@Override
public void onSelectMenuInteraction(SelectMenuInteractionEvent event) {
    int a = Integer.parseInt(event.getValues().get(0));
}

方法二：

@Override
public void playlistLoaded(AudioPlaylist playlist) {
    final AudioTrack Track = playlist.getTracks().get(a);
}

问题：如何从方法 1 访问变量 a？

Answer 1

尝试将其设置为字段

public class SomeClass extends ListenerAdapter {
     private int track;
     @Override
     public void onSelectMenuInteraction(SelectMenuInteractionEvent event) {
          track = Integer.parseInt(event.getValues().get(0));
     }
     @Override
     public void playlistLoaded(AudioPlaylist playlist) {
          final AudioTrack Track = playlist.getTracks().get(track);
     }

或者使用堆栈

public class SomeClass extends ListenerAdapter {
     private final Stack<Integer> tracks = new Stack<Integer>();
     @Override
     public void onSelectMenuInteraction(SelectMenuInteractionEvent event) {
          int track = Integer.parseInt(event.getValues().get(0));
          tracks.push(track);
     }
     @Override
     public void playlistLoaded(AudioPlaylist playlist) {
          final AudioTrack Track = playlist.getTracks().get(tracks.pop());
     }

如何从JDA中的方法访问变量

How to access variable from method in JDA

java

discord

discord-jda