Yep now i got the error.
Well, finally the solution i'm adopting now is the ep-like suggestion:
MenuBar root = new MenuItem("MyMenuBar", new MyMenuBar(false));
MyMenuBar myMenuBar = (MyMenubar)root.getSubMenu();
Thanks to all
On 20 Ott, 09:21, ep <[email protected]> wrote:
> since MyMenuBar is-a MenuBar there is an implicit typecast, so you can
> do
>
> MenuBar myBar = new MyMenuBar(..)
>
> you can of course downcast the MenuBar to MyMenuBar, if you're sure it
> is a MyMenuBar
>
> @alexoffspring
>
> i'm wondering how you initialize the *root* with your MyMenuBar, if
> doing this way:
>
> MenuBar root = new MenuItem("MyMenuBar", new MyMenuBar(false));
> MyMenuBar myMenuBar = (MyMenubar)root.getSubMenu();
>
> then the cast shall be working like a charm....
>
> On 20 Okt., 03:31, Prashant <[email protected]> wrote:
>
>
>
> > you can typecast *MyMenuBar *to *MenuBar *but not the other way round. Here
> > you are trying to typecast *MenuBar* to *MyMenuBar*.
>
> > On 19 October 2010 21:28, alexoffspring <[email protected]> wrote:
>
> > > Thanks guys.
>
> > > Ok, i got the error in the constructor. Now it sounds like this:
>
> > > > public class MyMenuBar extends MenuBar {
>
> > > // super constructor
> > > public MyMenuBar(boolean bool) {
> > > super(bool);
> > > } ;
>
> > > But still i got the same ClassCastException.
>
> > > root is a MenuItem and root.getSubMenu() return a MenuBar
> > > object.
>
> > > On 19 Ott, 17:39, ep <[email protected]> wrote:
> > > > where do you make new MyMenuBar() and how do you provide it to the
> > > > "root" member? and what type is root actually?
>
> > > > On 19 Okt., 17:14, alexoffspring <[email protected]> wrote:
>
> > > > > I created a public class MyMenuBar just to use the getItems()
> > > > > method, which is protected in MenuBar:
> > > > > ........
> > > > > public class MyMenuBar extends MenuBar {
>
> > > > > // super constructor
> > > > > public MyMenuBar(boolean bool) {
> > > > > new MenuBar(bool);
> > > > > }
>
> > > > > // the super.getItems() is protected
> > > > > public List<MenuItem> getItems() {
> > > > > return super.getItems();
> > > > > }
>
> > > > > };
>
> > > > > ........
>
> > > > > I don't understand why a get a java.lang.ClassCastException when i
> > > > > try to cast a MenuBar into a MyMenuBar:
>
> > > > > .........
> > > > > MenuBar menuBar = root.getSubMenu();
> > > > > local_mmb = ((MyMenuBar) menuBar).getItems();
> > > > > ........
>
> > > > > Where am i wrong?- Nascondi testo citato
>
> > > > - Mostra testo citato -
>
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>
> > --
> > Prashantwww.claymus.com
> > code.google.com/p/claymus/- Nascondi testo citato
>
> - Mostra testo citato -
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