This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
Background: I have a JPanel (PanelCarga extends JPanel) that displays as many sub-JPanels (DatosArchivo extends JPanel) as files I wish to open (n DatosArchivo panels) in my program for diferent purposes. This DatosArchivos contains a "X" button that I wish it to closes this DatosArchivos panel and then informs to the corresponding PanelCarga that it have been closed so that can reorganize in his grid the remaining n-1 DatosArchivo panels.