I have a JPanel(parent) on which I am GridLayout. In my JPanel, I have two panels(child1,child2) added. Both these panels have a ComboBox. The actionListener causes the bigger panel to be repainted. Now, when if my child1.ComboBox has some item selected, how do I show it in the JComboBox next to the arrow. After a repaint, I am getting a default value at the combo boxes.