import javax.swing.DefaultListModel;
import javax.swing.JList;
public class Main {
public static void main(String[] argv) throws Exception {
DefaultListModel<String> model = new DefaultListModel<>();
JList<String> list = new JList<>(model);
int pos = 0;
model.add(pos, "a");
//Insert an item at the beginning
model.add(pos, "a");
// Initialize the list with items
String[] items = { "A", "B", "C", "D" };
for (int i = 0; i < items.length; i++) {
model.add(i, items[i]);
}
// Replace the 2nd item
pos = 1;
model.set(pos, "b");
// Remove the first item
model.remove(pos);
// Remove the last item
pos = model.getSize() - 1;
if (pos >= 0) {
model.remove(pos);
}
// Remove all items
model.clear();
}
}