private TicketJPanel getRightPanel() {
if (rightPanel == null) {
rightPanel = new TicketJPanel();
rightPanel.setBackground(Color.RED);
}
return rightPanel;
}
private TicketJPanel getLeftPanel() {
if (leftPanel == null) {
leftPanel = new TicketJPanel();
leftPanel.setBackground(Color.BLUE);
}
return leftPanel;
}