Onload JComboBox should display "Search" in it

Question

I want to display "Search" text by default in JComboBox. But it should not be added into JComboBox list, once I select something from drop down or click on JComboBox "Search" text should goes off. On loading the application I want to show to user that this is Search Box. The "Search" text should not be in the the JComboBox list.
I am pasting the sample code below.
package applet;
import java.awt.BorderLayout;
import javax.swing.JComboBox;
import javax.swing.JFrame;
public class ComboBox extends JFrame{
     public static void main(String args[])
          ComboBox frmCombo= new ComboBox();
          String[] pets = {"Alen", "Merry"};
          JComboBox cmbBox = new JComboBox(pets);
          cmbBox.setEditable(true);
          frmCombo.add(cmbBox, BorderLayout.NORTH);
          frmCombo.setSize(200, 200);
          frmCombo.setVisible(true);
}

Answer 1

import java.awt.*;
import java.awt.event.FocusEvent;
import javax.swing.*;
import javax.swing.plaf.basic.BasicComboBoxEditor;
public class ComboBoxSearch extends JFrame {
     public static void main( String args[] ) {
          ComboBoxSearch frmCombo = new ComboBoxSearch();
          String[] pets = { "Alen", "Merry" };
          JComboBox cmbBox = new JComboBox( pets );
          cmbBox.setEditable( true );
          cmbBox.setEditor( new IndicateSearchEditor() );
          frmCombo.setLayout( new BorderLayout() );
          frmCombo.add( new JTextField(), BorderLayout.NORTH );
          frmCombo.add( cmbBox, BorderLayout.SOUTH );
          frmCombo.pack();
          frmCombo.setVisible( true );
     static class IndicateSearchEditor extends BasicComboBoxEditor {
          private boolean once = false;
          private Object value;
          public IndicateSearchEditor() {
               super();
               editor.addFocusListener( this );
          public void focusGained( FocusEvent e ) {
               if ( !once ) {
                    once = true;
                    setItem( value );
                    value = null;
          public void setItem( Object anObject ) {
               super.setItem( anObject );
               if ( !once ) {
                    value = anObject;
                    editor.setText( "Search" );
}