Java SE (Java Platform, Standard Edition)

perhaps, i dont know how to use FilenameFilter with FileDialog because the following approach doesn' work

FileDialog fd=new FileDialog(myframe,"Select an image");
 fd.setFilenameFilter(new filefilter());                                                                                                                            
                                                                                                         class filefilter implements FilenameFilter{
    public boolean accept(File dir, String name) {
        if(name.endsWith("jpg")||name.endsWith("gif")||name.endsWith("png")){
                      return true;  
             }
             return false;
    }
    
}

if anyone have compatible idea then please let me know.

thanks