出来ないとただ言われても、「出来るはずなんだけど...」としか言いようがないです。
Java
1import javax.swing.*;
2import java.awt.*;
3import java.awt.event.ActionEvent;
4import java.awt.event.ActionListener;
5
6class Main extends JFrame implements ActionListener {
7 private JLabel label = new JLabel("Noisy");
8
9 private Main() {
10 setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
11
12 setLayout(new BorderLayout());
13 JButton button = new JButton("Delete");
14
15 add(button, BorderLayout.NORTH);
16 add(label, BorderLayout.SOUTH);
17 button.addActionListener(this);
18
19 pack();
20 setLocationRelativeTo(null);
21 setVisible(true);
22 }
23
24 public void actionPerformed(ActionEvent e) {
25 remove(label);
26 repaint();
27 }
28
29 public static void main(String[] args) {
30 new Main();
31 }
32}