We would like to know how to disable JList with JCheckBox.
/* ww w.ja v a 2s . com*/ import java.awt.BorderLayout; import java.awt.Container; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.JList; import javax.swing.JScrollPane; import javax.swing.ListSelectionModel; public class Main { public static void main(String args[]) { String ITEMS[] = { "Black", "Blue", "Green", "Orange", "Purple", "Red", "White" }; JList jList = new JList(ITEMS); jList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); JScrollPane scroll = new JScrollPane(jList); scroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER); scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS); JCheckBox chkEnable = new JCheckBox("Enable", true); chkEnable.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { jList.setEnabled(chkEnable.isSelected()); } }); JFrame f = new JFrame("Colors"); Container contentPane = f.getContentPane(); contentPane.setLayout(new BorderLayout()); contentPane.add(scroll, BorderLayout.CENTER); contentPane.add(chkEnable, BorderLayout.NORTH); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setSize(180, 220); f.setLocationRelativeTo(null); f.setVisible(true); } }