Fast Question: Index of a Component in another component

[pek]

So I have a JPanel that is a container for a number of JLabels. Let's
say I have a reference for a particular JLabel that is in the JPanel's
component list. How can I find the index of the JLabel in the
JPanel..? JPanel has a getComponent(int index). What about the
oposite..?

Sorry for the trouble..

 

[Roedy Green]

JPanel..? JPanel has a getComponent(int index). What about the
oposite..?

Not likely. Every time a element were added or deleted, the embedded
index number would have to be updated in every Component. It would be
faster just to scan the component list when you need the reverse
index.

 

[pek]

Not likely. Every time a element were added or deleted, the embedded
index number would have to be updated in every Component. It would be
faster just to scan the component list when you need the reverse
index.

Oh, I see. I was just wondering if there was a method like List's int
indexOf(T element). Anyway, thnks..

 

[Roedy Green]

Oh, I see. I was just wondering if there was a method like List's int
indexOf(T element). Anyway, thanks..

You are SOL. Inside Component you will see
Component component[] = new Component[0];
It is default scope. So if you extended Container, you could not
access the array of children to do the scan.