Get button state from ButtonModel in Java
Description
The following code shows how to get button state from ButtonModel.
Example
/*w ww. jav a 2s . co m*/
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.DefaultButtonModel;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class Main {
public static void main(String[] args) {
final JButton ok = new JButton("ok");
JCheckBox cb = new JCheckBox("Enabled", true);
ok.setBounds(40, 30, 80, 25);
ok.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
DefaultButtonModel model = (DefaultButtonModel) ok.getModel();
if (model.isEnabled())
System.out.println("Enabled: true");
else
System.out.println("Enabled: false");
if (model.isArmed())
System.out.println("Armed: true");
else
System.out.println("Armed: false");
if (model.isPressed())
System.out.println("Pressed: true");
else
System.out.println("Pressed: false");
}
});
cb.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (ok.isEnabled())
ok.setEnabled(false);
else
ok.setEnabled(true);
}
});
JFrame f = new JFrame();
f.setLayout(new FlowLayout());
f.add(ok);
f.add(cb);
f.setSize(350, 250);
f.setLocationRelativeTo(null);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
}
}
The code above generates the following result.
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