How do I get a method to be called every time any checkbox gets checked?

[Ami]

Hi

Within my GUI, I have a large number of "JCheckBox"es.

I would like a certain method to be called each time any of the checkboxes is clicked.

The problem is that I can't say for example:
(In my Action Performed method)

if (e.getSource== checkBox1 || checkbox2 || checkbox 3 .. ...)


This wouldn't be the best way to do it, as I have many checkboxes.


Therefore, I'm looking for a better way to do it.
Any help would be appreciated.

Thanks

[doWhile]

Many ways to implement. Here's one: add different actions listeners to each JCheckBox that implements what you need for said JCheckBox (in other words, don't rely on a single ActionListener to handle all). Another way might entail creating an interface, and using a Map to correlate the JCheckBox to the appropriate implementation of the interface.

[StaticRich]

assuming you mean literally ANY of the checkboxes:

if (e.getSource() instanceof JCheckBox)

[Fubarable]

assuming you mean literally ANY of the checkboxes:

if (e.getSource() instanceof JCheckBox)

Any time I see instanceof used like this, I think that the code needs to be re-designed as this makes for very fragile code, code that easily breaks with the smallest of changes. To the original poster, doWhile's suggestions are much better than StaticRich's, and I recommend you stick with them.

[Ami]

Thanks everyone

I tried the instanceof suggestion but it didn't work.

I feel that the interface option is quite difficult to implement.

I think it might be simpler to do it this way:
I have put the checkboxes into an ArrayList. I need to check if e.getSource is any of the checkboxes in this ArrayList. Please can someone let me know if there's a method that does this (ie to see if the selected checkbox is in the ArrayList).



Thanks

[Ami]

Thanks for your help everyone who replied.


I think it's sorted now.