How to use

add

method

in

org.jfree.ui.DateChooserPanel

/**
 * Constructs a new date chooser panel.
 *
 * @param calendar     the calendar controlling the date.
 * @param controlPanel a flag that indicates whether or not the 'today' 
 *                     button should appear on the panel.
 */
public DateChooserPanel(final Calendar calendar, 
            final boolean controlPanel) {
  super(new BorderLayout());
  this.chosenDateButtonColor = UIManager.getColor("textHighlight");
  this.chosenMonthButtonColor = UIManager.getColor("control");
  this.chosenOtherButtonColor = UIManager.getColor("controlShadow");
  // the default date is today...
  this.chosenDate = calendar;
  this.firstDayOfWeek = calendar.getFirstDayOfWeek();
  this.WEEK_DAYS = new int[7];
  for (int i = 0; i < 7; i++) {
    this.WEEK_DAYS[i] = ((this.firstDayOfWeek + i - 1) % 7) + 1;
  }
  add(constructSelectionPanel(), BorderLayout.NORTH);
  add(getCalendarPanel(), BorderLayout.CENTER);
  if (controlPanel) {
    add(constructControlPanel(), BorderLayout.SOUTH);
  }
  setDate(calendar.getTime());
}

/**
 * Constructs a new date chooser panel.
 *
 * @param calendar     the calendar controlling the date.
 * @param controlPanel a flag that indicates whether or not the 'today' 
 *                     button should appear on the panel.
 */
public DateChooserPanel(final Calendar calendar, 
            final boolean controlPanel) {
  super(new BorderLayout());
  this.chosenDateButtonColor = UIManager.getColor("textHighlight");
  this.chosenMonthButtonColor = UIManager.getColor("control");
  this.chosenOtherButtonColor = UIManager.getColor("controlShadow");
  // the default date is today...
  this.chosenDate = calendar;
  this.firstDayOfWeek = calendar.getFirstDayOfWeek();
  this.WEEK_DAYS = new int[7];
  for (int i = 0; i < 7; i++) {
    this.WEEK_DAYS[i] = ((this.firstDayOfWeek + i - 1) % 7) + 1;
  }
  add(constructSelectionPanel(), BorderLayout.NORTH);
  add(getCalendarPanel(), BorderLayout.CENTER);
  if (controlPanel) {
    add(constructControlPanel(), BorderLayout.SOUTH);
  }
  setDate(calendar.getTime());
}

/**
 * Constructs a new date chooser panel.
 *
 * @param calendar     the calendar controlling the date.
 * @param controlPanel a flag that indicates whether or not the 'today' 
 *                     button should appear on the panel.
 */
public DateChooserPanel(final Calendar calendar, 
            final boolean controlPanel) {
  super(new BorderLayout());
  this.chosenDateButtonColor = UIManager.getColor("textHighlight");
  this.chosenMonthButtonColor = UIManager.getColor("control");
  this.chosenOtherButtonColor = UIManager.getColor("controlShadow");
  // the default date is today...
  this.chosenDate = calendar;
  this.firstDayOfWeek = calendar.getFirstDayOfWeek();
  this.WEEK_DAYS = new int[7];
  for (int i = 0; i < 7; i++) {
    this.WEEK_DAYS[i] = ((this.firstDayOfWeek + i - 1) % 7) + 1;
  }
  add(constructSelectionPanel(), BorderLayout.NORTH);
  add(getCalendarPanel(), BorderLayout.CENTER);
  if (controlPanel) {
    add(constructControlPanel(), BorderLayout.SOUTH);
  }
  setDate(calendar.getTime());
}