import java.awt.*; import javax.swing.*; public class SwingExample { public static void main(String[] args) { JFrame jFrame = new JFrame("SwingExample.java"); jFrame.setSize(420, 420); JPanel jPanel = new JPanel(); jFrame.add(jPanel); jPanel.add(new JTextField(25)); jPanel.add(new JButton("Buttom")); JList jList = new JList(); // jList.add("item 1"); // This doesn't work // jList.add("item 2"); // This doesn't work // jList.add("item 3"); // This doesn't work // jList.add("item 4"); // This doesn't work // jList.add("item 5"); // This doesn't work jPanel.add(jList); jFrame.setVisible(true); } }