import javax.swing.JComboBox;
public class Main {
public static void main(String[] argv) throws Exception {
// Create a read-only combobox
String[] items = { "item1", "item2" };
JComboBox cb = new JComboBox(items);
cb.setEditable(true);
cb.setSelectedItem("item3");
Object obj = cb.getSelectedItem();
}
}