Swing (javax.swing)

Creating a List

The list fires a list selection event whenever its set of selected items changes.


    // A multiple selection list.
    String[] items = {"item1", "item2"};
    JList list = new JList(items);
    list.addListSelectionListener(new MyListSelectionListener());
    
    // Make the list single selection mode
    list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    
    class MyListSelectionListener implements ListSelectionListener {
        public void valueChanged(ListSelectionEvent evt) {
            if (!evt.getValueIsAdjusting()) {
                JList list = (JList)evt.getSource();
                Object[] selected = list.getSelectedValues();
                for (int i=0; i<selected.length; i++) {
                    process(selected[i]);
                }
            }
        }
    }