Ok, let's see ...
1. add ActionListener to your menuitem.
2. when MenuItem fire the event, you can compare what MenuItem was clicked
if(a.getSource() == item1) { // MenuItem 1 has an action event.
:
}
3. You can call a method into that IF, and you can make a new window with
all JList content.
4. You can pass as parameter the MenuItem that was clicked.
showMyJList((JMenuItem)a.getSource());
or
showMyJList(item1);
5. Into 'showMyJList', you can knows the MenuItem's text
void showMyJList(JMenuItem item) {
:
String label = item.getLabel(); // MenuItem's name that was fired
an event (clicked)
:
showNewWindows();
:
}
You will need to do a review of Swing :P ...
On Thu, Sep 24, 2009 at 5:33 AM, javaquestion
<cplusplusquest...@gmail.com>wrote:
>
>
>
> On Sep 24, 1:04 am, Victor Lutin <umg.victor.lu...@gmail.com> wrote:
> > Mmmh ... You can add an ActionListener directly to MenuItem, You don't
> need
> > to use a JButton for that.
> >
> > Check Java Doc:
> >
> > http://java.sun.com/j2se/1.4.2/docs/api/java/awt/MenuItem.html
> >
> > This works in 1.4+ :) ...
> >
> > Your class most implements ActionListener Interface
> >
> > public class YourClasssWithMenuItems implements *ActionListener* {
> > private JMenuItem item1;
> > :
> > *public void actionPerformed(ActionEvent a)* {
> > if(a.getSource() == item1) { // MenuItem 1 has an action event.
> > :
> > }
> > :
> > }
> > :
> > item1 = new JMenuItem("Item 1");
> > item.addActionListener(this);
> > :
> >
>
> Thanks for this. However, the program in some cases will work as
> follows:
>
> Click JMenuItem -> Display a JList -> Select an item from JList ->
> Display a new window, in this new window I need to check which
> JMenuItem I was clicked. I still don't know how to work.
>
> >
>
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