1. html向applet傳遞參數：
>param name = STRINGNAME value = "String"<
>param name = NUMNAME value = number<
2. 使applet作為application運行
增加main方法，注意isStandalone的設置
3. 顯示圖片
Class metaObject = this.getClass();
java.net.URL url = metaObject.getResource("ca.gif");
ImageIcon imageIcon = new ImageIcon(url);
Image image = imageIcon.getImage();
4. 播放聲音
AudioClip audioClip = Applet.newAudioClip(url);