java程序中显示gif图片，,import java.

java程序中显示gif图片，,import java.

import java.awt.*;import java.awt.image.*;public class ImageCanvas extends Canvas {  Image image;  public ImageCanvas(String name) {    MediaTracker media = new MediaTracker(this);    image = Toolkit.getDefaultToolkit().getImage(name);    media.addImage(image, 0);    try {      media.waitForID(0);        }    catch (Exception e) {}    }  public ImageCanvas(ImageProducer imageProducer) {    image = createImage(imageProducer);    }  public void paint(Graphics g) {    g.drawImage(image, 0,0, this);    }  public static void main(String argv[]) {    if (argv.length < 1) {       System.out.println          ("usage: ImageCanvas.class [image file name]");       System.exit(0);       }    Frame frame = new Frame(argv[0]);    frame.setLayout(new BorderLayout());    frame.add("Center", new ImageCanvas(argv[0]));    frame.resize(400,400);    frame.show();    }}