JComboBox.isEditable() has the following syntax.
public boolean isEditable()
In the following code shows how to use JComboBox.isEditable() method.
import java.awt.event.ItemEvent; import java.awt.event.ItemListener; // w w w . ja v a2 s . c om import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.ListCellRenderer; public class Main extends JPanel implements ItemListener { public Main() { JComboBox jc = new JComboBox(); jc.addItem("France"); jc.addItem("Germany"); jc.addItem("Italy"); jc.addItem("Japan"); jc.addItemListener(this); add(jc); System.out.println(jc.isEditable()); } public void itemStateChanged(ItemEvent ie) { String s = (String)ie.getItem(); System.out.println(s); } public static void main(String[] args) { JFrame frame = new JFrame(); frame.getContentPane().add(new Main()); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(200, 200); frame.setVisible(true); } }