jbuttons

[sarah jain]

Hi,

Is there a way to implement an action listener for a Jbutton without a name. I want the first button to display A, second to display B....

          for (int i = 0; i < whites.length; i++) {
          JButton whiteKeyBtn = new JButton();
          whiteKeyBtn.setBackground(Color.white);
          wPanel.add(whiteKeyBtn);
          }

Regards,
Sarah.

[NRitH]

Is there a way to implement an action listener for a Jbutton without a name. I want the first button to display A, second to display B....

Yes, of course. Do you want a single ActionListener that will listen to all the buttons, or one per button? Either way, you'd add it by calling button.addActionListener(ActionListener).

[eRaaaa]

		ActionListener listener = new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				System.out.println(e.getActionCommand());
			}
		};
//....
			for (int i = 0; i < whites.length; i++) {
//....
			whiteKeyBtn.setActionCommand(String.valueOf((char)(i + 'A')));
			whiteKeyBtn.addActionListener(listener);

:confused:

[DarrylBurke]

Cross posted
jbuttons (Swing / AWT / SWT / JFace forum at JavaRanch)

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