Display list selected value on label

Question

ItemListener is implemented here, below code is just the part. Here, i need the selected item from the list to be displayed on the label. This code isn't working. Thankyou for helping.

public void itemStateChanged(ItemEvent ie)
{
    String data = objectOfList.getSelectedItem();
    objectOfLabel.setText("selected item: " + data);
}

Answer 1

You want to add an item listener to the combobox whose itemStateChanged() method gets called each time the user selects or deselects an item.

https://docs.oracle.com/javase/7/docs/api/java/awt/event/ItemListener.html#itemStateChanged(java.awt.event.ItemEvent)

I've written a small demo you can use as a reference:

public static void main(String[] args) {
    JComboBox<String> comboBox = new JComboBox<>();
    comboBox.addItem("item1");
    comboBox.addItem("item2");

    JLabel label = new JLabel();

    comboBox.addItemListener(new ItemListener() {
        @Override
        public void itemStateChanged(ItemEvent e) {
            label.setText("selected item: " + comboBox.getSelectedItem());
        }
    });

    JPanel panel = new JPanel();
    panel.add(label);
    panel.add(comboBox);

    JFrame frame = new JFrame();
    frame.add(panel);
    frame.pack();
    frame.setVisible(true);
}