import java.io.File;import javax.swing.*;import javax.swing.filechooser.*;/* ImageFilter.java is a 1.4 example used by FileChooserDemo2.java. */public class ImageFilter extends FileFilter {    //Accept all directories and all gif, jpg, tiff, or png files.    public boolean accept(File f) {        if (f.isDirectory()) {            return true;        }        String extension = Utils.getExtension(f);        if (extension != null) {            if (extension.equals(Utils.tiff) ||                extension.equals(Utils.tif) ||                extension.equals(Utils.gif) ||                extension.equals(Utils.jpeg) ||                extension.equals(Utils.jpg) ||                extension.equals(Utils.png)) {                    return true;            } else {                return false;            }        }        return false;    }    //The description of this filter    public String getDescription() {        return "Just Images";    }}