Question

我已经有一个面板，我已经添加了按钮和文本区域。现在我需要在它下面显示一个表格。面板的布局是AbsoluteLayout，如果我使用以下方法给表膨胀它显示为空

        String data[][] = { { "vinod", "BCA", "A" }, { "Raju", "MCA", "b" },
                { "Ranjan", "MBA", "c" }, { "Rinku", "BCA", "d" } };

        String col[] = { "Name", "Course", "Grade" };
        JTable table = new JTable(data, col);
        table.setLocation(25,343);
        panel.add(table, BorderLayout.CENTER);

然而，当我使用setbounds时，表显示没问题，但它占用的空间超出了它的要求，并且这些行不显示在空白区域，看起来很糟糕。有没有人知道如何只设置一个表的x，y位置并留下其余的定位（宽度和高度以适应所需的）

String data[][] = { { "vinod", "BCA", "A" }, { "Raju", "MCA", "b" },
        { "Ranjan", "MBA", "c" }, { "Rinku", "BCA", "d" } };

String col[] = { "Name", "Course", "Grade" };
JTable table = new JTable(data, col);
table.setBounds(25,343,122,122);
panel.add(table, BorderLayout.CENTER);

Answer 1

do not use AbsoluteLayout，导致调整大小等问题。
放JTable to the JScrollPane，不要使用JPanel as container for JTable
阅读有关How to use JTable，
重要的是asked, answered and described on this forum

Answer 2

JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(new BorderLayout());
frame.add (Box.createVerticalStrut(343), BorderLayout.NORTH);
frame.add (Box.createHorizontalStrut(25), BorderLayout.WEST);
frame.add (new JTable (5, 5), BorderLayout.CENTER);
frame.pack();
frame.setVisible(true);

将表添加到java swing

2 个答案: