JAVA FILE or I/O学习 - Desktop本地程序学习

public class DesktopKnow
{
    public void know()
    {
        try
        {
            Desktop.getDesktop().open(new File("C:\\Program Files"));
        } catch (IOException e1)
        {
            JOptionPane.showMessageDialog(null, "抱歉，您的电脑中还没有安装打开该文件的程序！", "打开文件 - 提示", JOptionPane.WARNING_MESSAGE);
        }
    }
    public static void main(String[] args)
    {
        DesktopKnow desktopKnow = new DesktopKnow();
        desktopKnow.know();
    }
}