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请您告诉我为什么滚动不起作用。它是可见的,但它不起作用,在这里你可以看到这段代码。缺失的部分是什么?JScrollPane滚动可见但不起作用
// GUI elements
private JTextField textSend = new JTextField(20);
private JTextArea textArea = new JTextArea(5, 20);
private JScrollPane scroll = new JScrollPane(textArea);
private JButton buttonConnect = new JButton("Connect");
private JButton buttonSend = new JButton("Send");
private JButton buttonDisconnect = new JButton("Disconnect");
private JButton buttonQuit = new JButton("Quit");
private JPanel leftPanel = new JPanel();
private JPanel rightPanel = new JPanel();
private JLabel empty = new JLabel("");
ChessHeroChatClient() {
setTitle("ChessHero Chat Client");
setLocationRelativeTo(null);
setSize(500, 500);
setResizable(false);
leftPanel.setLayout(new BorderLayout());
rightPanel.setLayout(new GridLayout(6, 1));
scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
leftPanel.add(textSend, BorderLayout.NORTH);
leftPanel.add(textArea, BorderLayout.WEST);
leftPanel.add(scroll, BorderLayout.EAST);
add(leftPanel, BorderLayout.CENTER);
add(rightPanel, BorderLayout.EAST);
textArea.setEditable(false);
很难说没有看到实际的课程或你的意思是不工作。截图怎么样?或更多细节。 –