Border titleBorder2 = BorderFactory.createTitledBorder("your infomation"); scrollPane.setBorder(titleBorder2); JTextArea infomation = new JTextArea(); scrollPane.add(infomation); JPanel panel_3 = new JPanel(); JPanel panel_4 = new JPanel(); splitPane.setRightComponent(panel_4); panel_4.add(scrollPane); panel_4.setPreferredSize(100,100); panel_4.add(panel_3); JButton savebtn = new JButton("Save"); panel_3.add(savebtn);优化代码

可以对这段代码进行如下优化：

JPanel panel = new JPanel(new BorderLayout());

Border border = BorderFactory.createTitledBorder("Your Information");

JTextArea information = new JTextArea();
JScrollPane scrollPane = new JScrollPane(information);
scrollPane.setBorder(border);

JPanel buttonPanel = new JPanel();
JButton saveButton = new JButton("Save");
buttonPanel.add(saveButton);

panel.add(scrollPane, BorderLayout.CENTER);
panel.add(buttonPanel, BorderLayout.SOUTH);
panel.setPreferredSize(new Dimension(100, 100));

这段代码将三个面板合并为一个面板，并使用BorderLayout布局管理器来排列组件。另外，使用了更加简洁的变量名，同时也避免了不必要的重复代码。