How I can get the \'container\' panel for any panel in CardLayout.
CardLayout
That is, if a panel is a card in another \'container\' panel, then how to get reference
You can use the method getParent that is provided by the Component superclass. For your panel that is a card, simply call panel.getParent() and it will give you the containing (parent) panel.
Component
panel.getParent()