Swing JFC Java

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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 readOnlyCB = new JComboBox(items);
    // Create an editable combobox
    items = new String[] { "item1", "item2" };
    JComboBox editableCB = new JComboBox(items);
    editableCB.setEditable(true);
  }
}