Accessing Swing Component's Value from Another Class

[Hal Vaughan]

I have a panel in a GUI that has three components: A JTextArea, a JCheckBox
and a JButton. When the button is pressed, I want to check the value of
the checkbox and get the text of the textarea and store the info in a file.
I've found that the paramString() method for components is PROTECTED, so I
can't get to it from another class.

I tried declaring the component inside the class, like this:

private class MyPanel extends JPanel implements ActionListener {

JTextArea tFeedback = new JTextArea();

private void MyPanel() {
(The text box is sized and added to the panel here, along
with other components)

JButton button = new JButton("Save info");
ActionListener aListen = new MyPanel();
button.addActio nListener(aList en);
}

private void ActionPerformed (ActionEvent event) {
String sText = tFeedback.param String();
}
}

And I can't access paramString() in the ActionPerformed method. I thought
that protected would allow access within the class, but I can't access it
from a method in the same class. I also tried NOT creating a new class for
the listener and doing this: button.addActio nListener(this) ; and it still
won't work.

I tried using an inner class and an anonymous class. There's no need to
respond to the text area, since the text isn't modified (by the program, at
least) until I get it and save it. The same with the checkbox -- I don't
need to know anything about it until the "Save" button is pressed, but any
way I try to create a listener in this class still doesn't let me access
the data in components other than the one that generated the event.

Any ideas?

Thanks!

Hal

[Hal Vaughan]

It seems I was misinformed by someone at a usergroup that was trying to help
me. the paramString() method is not what one uses to get information about
a component. Once I established I had the wrong info, I was able to solve
the problem quickly.

Hal
Hal Vaughan wrote:

I have a panel in a GUI that has three components: A JTextArea, a
JCheckBox
and a JButton. When the button is pressed, I want to check the value of
the checkbox and get the text of the textarea and store the info in a
file. I've found that the paramString() method for components is
PROTECTED, so I can't get to it from another class.

I tried declaring the component inside the class, like this:

private class MyPanel extends JPanel implements ActionListener {

JTextArea tFeedback = new JTextArea();

private void MyPanel() {
(The text box is sized and added to the panel here, along
with other components)

JButton button = new JButton("Save info");
ActionListener aListen = new MyPanel();
button.addActio nListener(aList en);
}

private void ActionPerformed (ActionEvent event) {
String sText = tFeedback.param String();
}
}

And I can't access paramString() in the ActionPerformed method. I thought
that protected would allow access within the class, but I can't access it
from a method in the same class. I also tried NOT creating a new class
for
the listener and doing this: button.addActio nListener(this) ; and it still
won't work.

I tried using an inner class and an anonymous class. There's no need to
respond to the text area, since the text isn't modified (by the program,
at
least) until I get it and save it. The same with the checkbox -- I don't
need to know anything about it until the "Save" button is pressed, but any
way I try to create a listener in this class still doesn't let me access
the data in components other than the one that generated the event.

Any ideas?

Thanks!

Hal