jcombobox

The background color of the selected item in an uneditable JComboBox is a sort of blue: Is there any way to make this a different color, such as white, for example? This should work jComboBox1.setRenderer(new DefaultListCellRenderer() { @Override public void paint(Graphics g) { setBackground(Color.WHITE); setForeground(Color.BLACK); super.paint(g); } }); The background assigned by the renderer is overriden by the selection background color of the JList that is used in the popup for the combo box. Check out the "paintCurrentValue" method of the BasicComboBoxUI class. So the workaround would be:

Hello I have the following code to see if an item in the JComboBox is instance of a class(Persoon). public class ItemChangeListener implements ItemListener { Persoon selectedPerson; RekeningApp app; PersoonView view; public ItemChangeListener(PersoonView view) { this.view = view; } public void itemStateChanged(ItemEvent event) { if (event.getStateChange() == ItemEvent.SELECTED) { Object item = event.getItem(); System.out.println("Itemchangelistener " + item); // do something with object if(item instanceof Persoon) { System.out.println("Instance"); this.selectedPerson = (Persoon) item; view