!!!Swing ファイル選択ダイアログ
[Java][Swing]
*http://java.sun.com/javase/ja/6/docs/ja/api/javax/swing/JFileChooser.html
*http://docs.oracle.com/javase/tutorial/uiswing/components/filechooser.html

!!例
 JFileChooser chooser = new JFileChooser();
 FileNameExtensionFilter filter 
    = new FileNameExtensionFilter(
     "Zip or Text File", "txt", "log", "zip");
 chooser.setFileFilter(filter);
 chooser.setMultiSelectionEnabled(true);
 int returnVal = chooser.showOpenDialog(parent);
 if(returnVal == JFileChooser.APPROVE_OPTION) {
    File[] selectedFiles = chooser.getSelectedFiles();
    for (File f : selectedFiles) {
        System.out.println(f.getName());
    }
 }