Java - events within events?

Question

I have a textfield and a button.

They have identical actionPerformed event listener. (e.g. when user clicks a button and when user hits ENTER).

Is there a way to avoid this kind of duplication of code? It just becomes a pain in the __ modifying the code in 2 places for each such case.

I was thinking would it be possible to call a button event inside of a textfield event, analogous like calling a function inside of another function?

EDIT:

Passing the same addActionPerformed method call to both textfield and button did the trick.

MeBigFatGuy · Accepted Answer · 2011-09-28 01:11:06Z

4

I assume you are complaining because you are using an anonymous inner class for both. So don't do that. Create a first-class class, and create an instance that you pass to both component's addActionListener.

answered Sep 28, 2011 at 1:11

MeBigFatGuy

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1 Comment

Greg Mattes Over a year ago

Yeah, that's pretty much it. Not quite sure whether there's another problem here. Maybe posting code would allow us to see if there's some issue.

Sascha · Accepted Answer · 2011-09-28 01:18:05Z

2

    ActionListener actionListener = new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            //...
        }
    };
    Button button = new Button();
    button.addActionListener(actionListener );
    TextField  textField = new TextField();
    textField.addActionListener(actionListener);

or not so elegant but possible call a third method doIt() in your both actionPerformed() methods

answered Sep 28, 2011 at 1:18

Sascha

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