Question

该程序可以通过调用main来显示和映像，并且可以在运行applet时播放音频文件。有没有办法同时做这两件事？

public class DisplayWinner extends JApplet {

    public static void main(String[] args) throws IOException { 

    ArrayList<String> images = new ArrayList<String>();
    int temp = (int)(Math.random()*2);
    String i1 ="0.png";
    String i2 ="1.jpg";

    images.add(i1);
    images.add(i2);

    JFrame frame=new JFrame();
    BufferedImage img = ImageIO.read(new File(images.get(temp)));
    ImageIcon icon = new ImageIcon(img);
    JLabel label = new JLabel(icon);

    frame.add(label);  
    frame.setExtendedState( frame.getExtendedState()|JFrame.MAXIMIZED_BOTH);
    frame.setVisible(true);
}

public void init(){
    AudioClip ac = getAudioClip(getCodeBase(), "39602-    John_Cena_(ShortMp3.com).wav");
    ac.play();
}
}

Answer 1

这就是我在init方法中所拥有的：

public void init() { 

    ArrayList<String> images = new ArrayList<String>();
    int temp = (int)(Math.random()*2);
    String i1 ="bm-0.png";
    String i2 ="bm-1.jpg";

    images.add(i1);
    images.add(i2);

    img=getImage(getDocumentBase(), "./"+images.get(temp));

    mt=new MediaTracker(this);

    mt.addImage(img, 0);

    try{
      mt.waitForID(0);
    }
    catch(InterruptedException e) { e.printStackTrace(); }

    try {
      AudioClip ac = getAudioClip(getCodeBase(), "e-20.wav");
      ac.play();
    }
    catch(Exception e) { e.printStackTrace(); }
}

并在paint方法中

  public void paint(Graphics g) {    
    g.drawImage(img, 0, 0, this);
  }

如何使用小程序播放音频文件并同时显示图像？

1 个答案: