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copied!<p>You should add Date Objects into <strong>JComboBox</strong> instead of the String for current Date and date for the next day and then use customized <strong>ListCellRenderer</strong> for rendering the Date in desired format.</p> <p><strong>Sample Code:</strong></p> <pre><code>import java.awt.Component; import java.text.SimpleDateFormat; import java.util.Date; import java.util.GregorianCalendar; import javax.swing.DefaultListCellRenderer; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JList; import javax.swing.JPanel; public class DateComboExample { // Create Date Renderer for formatting Date public static class DateComboBoxRenderer extends DefaultListCellRenderer { // desired format for the date private SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd"); public Component getListCellRendererComponent( JList list, Object value, int index, boolean isSelected, boolean cellHasFocus ) { Object item = value; // if the item to be rendered is date then format it if( item instanceof Date ) { item = dateFormat.format( ( Date ) item ); } return super.getListCellRendererComponent( list, item, index, isSelected, cellHasFocus); } } public static void main( String[] str ) { JComboBox combo = new JComboBox(); // Add current date GregorianCalendar calendar = new GregorianCalendar(); combo.addItem( calendar.getTime() ); // Add Next date calendar.roll( GregorianCalendar.DAY_OF_MONTH, 1 ); combo.addItem( calendar.getTime() ); // Set Renderer for formating the date in combobox combo.setRenderer( new DateComboBoxRenderer() ); JFrame frame = new JFrame( "Date Rendere Example" ); JPanel panel = new JPanel(); panel.add( new JLabel( "Date Combo: ") ); panel.add( combo ); frame.add( panel ); frame.pack(); frame.setVisible( true ); } } </code></pre>

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