CheckBox Item Listener
import java.awt.BorderLayout; import java.awt.Color; import java.awt.Container; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.awt.event.KeyEvent; import javax.swing.AbstractButton; import javax.swing.ButtonModel; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class SelectingCheckBox { private static String DESELECTED_LABEL = "Deselected"; private static String SELECTED_LABEL = "Selected"; public static void main(String args[]) { JFrame frame = new JFrame("Selecting CheckBox"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JCheckBox checkBox = new JCheckBox(DESELECTED_LABEL); ActionListener actionListener = new ActionListener() { public void actionPerformed(ActionEvent actionEvent) { AbstractButton abstractButton = (AbstractButton)actionEvent.getSource(); boolean selected = abstractButton.getModel().isSelected(); String newLabel = (selected ? SELECTED_LABEL : DESELECTED_LABEL); abstractButton.setText(newLabel); } }; ChangeListener changeListener = new ChangeListener() { public void stateChanged(ChangeEvent changeEvent) { AbstractButton abstractButton = (AbstractButton)changeEvent.getSource(); ButtonModel buttonModel = abstractButton.getModel(); boolean armed = buttonModel.isArmed(); boolean pressed = buttonModel.isPressed(); boolean selected = buttonModel.isSelected(); System.out.println("Changed: " + armed + "/" + pressed + "/" + selected); } }; ItemListener itemListener = new ItemListener() { public void itemStateChanged(ItemEvent itemEvent) { AbstractButton abstractButton = (AbstractButton)itemEvent.getSource(); Color foreground = abstractButton.getForeground(); Color background = abstractButton.getBackground(); int state = itemEvent.getStateChange(); if (state == ItemEvent.SELECTED) { abstractButton.setForeground(background); abstractButton.setBackground(foreground); } } }; checkBox.addActionListener(actionListener); checkBox.addChangeListener(changeListener); checkBox.addItemListener(itemListener); checkBox.setMnemonic(KeyEvent.VK_S); Container contentPane = frame.getContentPane(); contentPane.add(checkBox, BorderLayout.NORTH); frame.setSize(300, 100); frame.setVisible(true); } }