Swing JComboBox implementation guide Selected Item After Adding New Values Dynamically
I'm implementing a `JComboBox` in a Swing application to allow users to select a fruit from a list. The scenario I'm working with is that after dynamically adding new items to the `JComboBox`, the selected item does not update correctly. For example, if I add 'Banana' after 'Apple' and 'Orange', the selected item remains 'Apple' even after I explicitly set the selected item to 'Banana'. Here is a snippet of how I am adding items: ```java DefaultComboBoxModel<String> model = new DefaultComboBoxModel<>(); model.addElement("Apple"); model.addElement("Orange"); JComboBox<String> fruitComboBox = new JComboBox<>(model); // Simulate adding a new item model.addElement("Banana"); fruitComboBox.setSelectedItem("Banana"); ``` However, after executing this code, I still see 'Apple' as the selected item when I print: ```java System.out.println(fruitComboBox.getSelectedItem()); // prints 'Apple' ``` I tried calling `fruitComboBox.revalidate();` and `fruitComboBox.repaint();` after updating the model, but it didn’t help. I’m also using Java 11 and the look and feel is set to Nimbus. What am I missing here? Is there a specific method to ensure the combo box updates the selected item correctly after modifying the model?