Question 23: Consider the Java code given below.

1import java.awt.*;
2import javax.swing.*;
3import java.awt.event.*;
4
5class TokenSystem extends JFrame implements ActionListener {
6    JButton btnTakeToken, btnCancelToken;
7    JLabel label;
8    JPanel p1, p2;
9
10    public TokenSystem() {
11        p1 = new JPanel();
12        p2 = new JPanel();
13
14        btnTakeToken = new JButton("Take Token");
15        btnCancelToken = new JButton("Cancel Token");
16        label = new JLabel("Please select an option");
17
18        p1.add(btnTakeToken);
19        p1.add(btnCancelToken);
20        p2.add(label);
21
22        add(p1, "Center");
23        add(p2, "South");
24
25        btnTakeToken.setActionCommand("TakeToken");
26        btnCancelToken.setActionCommand("CancelToken");
27        btnTakeToken.addActionListener(this);
28        btnCancelToken.addActionListener(this);
29
30        setSize(350, 150);
31        setVisible(true);
32    }
33     public void actionPerformed(ActionEvent e) {
34         // CODE SEGMENT
35     }
36}
37
38public class HospitalQueue {
39    public static void main(String[] args) {
40        new TokenSystem();
41    }
42     }