Swing Java，使用菜单时关闭特定窗口

Question

I have a class which creates a menu with all of the menuItems etc, I then have many UIs which have a JMenu in which I give the JMenu from the first class. My problem is that the menu has many items which open other UIs, how do I make a check so that one is opened, the current window is closed?

A very short version of what I do is :

Menu:

public Menu()
{       
    menuBar = new JMenuBar();
    }
    public JMenuBar makeMenu()
    {
         return menuBar;
     }

UI :

public UI()
{
 JMenuBar menu = Menu.makeMenu();
 }

Note this is just to see the idea, the code is far more complicated but would be useless to show. The reason why I do this is that I have such a gigantic menu that it would add a huge amount of repeatable code to all UIs.

Answer 1

假设每个窗口都有自己的菜单栏，则可以使用“ 关闭应用程序”中的ExitAction类。

Answer 2

Using the code that camickr provided, I make a perfect fix for this problem by just turning the visibility off of the first frame while the other one loads, this way the system doesn t close since ExitAction code was closing before anything else appeared. The code is as it follows :

for (Window frame : Window.getWindows())
        {
            if (frame.isActive())
            {
                frame.setVisible(false);
            }
        }

Hope it will help people