java - 如何随机播放和播放阵列中的音频文件

Question

我的代码有一些问题，我想改组包含.mp3音频文件的文件数组，并在单击按钮时播放其中的一个文件!我绝对不知道该怎么做，我需要一些帮助，真正的帮助!这是我的代码!.....它可以运行，但可以一次播放所有文件....我希望它随机化，只播放其中一个文件。

import javax.swing.*;

import sun.audio.AudioPlayer;
import sun.audio.AudioStream;

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Array;
import java.util.Random;

public class Quest1 extends JFrame {

    String word [] = { "C:/Users/HP/Desktop/eclipse/audio.wav",
            "C:/Users/HP/Desktop/eclipse/baby.wav",
            "C:/Users/HP/Desktop/eclipse/board.wav",
            "C:/Users/HP/Desktop/eclipse/bomb.wav",
            "C:/Users/HP/Desktop/eclipse/gym.wav",
            "C:/Users/HP/Desktop/eclipse/football.wav",
            "C:/Users/HP/Desktop/eclipse/school.wav",
            "C:/Users/HP/Desktop/eclipse/keyboard.wav",
            "C:/Users/HP/Desktop/eclipse/computer.wav",
            "C:/Users/HP/Desktop/eclipse/name.wav"  };


    JButton click;      

    public Quest1 () {

        getContentPane().setBackground(Color.DARK_GRAY);

        setLayout(new GridBagLayout());

        GridBagConstraints g = new GridBagConstraints();


        g.anchor = GridBagConstraints.CENTER;
        g.gridx = 4;
        g.gridy = 5;
        g.gridwidth = 2;
        g.insets = new Insets (50, 2, 2, 2);
        g.fill = GridBagConstraints.CENTER;
        fill = new JTextField(15);
        add (fill, g);

        g.anchor = GridBagConstraints.CENTER;
        g.gridx = 4;
        g.gridy = 8;
        g.gridwidth = 2;
        g.insets = new Insets (30, 2,2,2);
        click = new JButton("Play");
        add(click, g);

        click.addActionListener (new ActionListener (){
            public void actionPerformed (ActionEvent x) {

                Random rand = new Random();
                    for (int i = 0; i < word.length;) {
                        int random = rand.nextInt(word.length);
                        String temp = word[i];
                        word [i] = word[random];
                        word[random] = temp;

                        InputStream in =null;
                        AudioStream out = null;
                            try {
                                in = new FileInputStream(temp);
                            } catch (FileNotFoundException e) {
                                // TODO Auto-generated catch block
                                e.printStackTrace();
                            }
                            try {
                                out = new AudioStream(in);
                            } catch (IOException e) {
                                // TODO Auto-generated catch block
                                e.printStackTrace();
                            }       
                            AudioPlayer.player.start(out);
                    }       
                    return;
            }
        });     
    }
}

Answer 1

如果它是一个普通的Java数组，其中包含要播放的文件，则最简单的方法是简单地生成一个随机索引，并从该数组中获取具有该索引的对象:

//Index of the random song
int r = (int) (Math.random() * (songs.length - 1);
//Get the song from the array
songs[r]
...

编辑:

您说过要从阵列中播放一个随机声音，因为您知道代码只是按正确的顺序播放了阵列中的所有文件。

如果只想播放一个，则必须删除 for循环。

正确的代码:

click.addActionListener (new ActionListener (){
        public void actionPerformed (ActionEvent x) {
            //Get random filepath from the array
            Random rand = new Random();
            int random = rand.nextInt(word.length);
            String temp = word[random];

            InputStream in =null;
            AudioStream out = null;
            //Get the actual file from the path
            try {
                in = new FileInputStream(temp);
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            }
            try {
                out = new AudioStream(in);
            } catch (IOException e) {
                e.printStackTrace();
            }       
            //Play the file
            AudioPlayer.player.start(out);
            return;
        }
    });