Question

为什么Jscrollpane添加Jtable后没有滚动条

有些并不重要的代码就删除了，显示效果见图

private JTable goodsTable; JPanel groundPanel; JScrollPane scrollPane; private void initGUI() { pack(); setSize(240, 300); groundPanel=new JPanel(); groundPanel.setLocale(null); groundPanel.setOpaque(false); groundPanel.setBounds(0, 0, 240, 200); scrollPane = new JScrollPane(); TableModel goodsTableModel = new DefaultTableModel( new String[][] { { "One", "Two","Three" }, { "Three","Three", "Four" }, { "Three", "Four","2" } , { "Three","Three", "Four" }, { "Three","Three", "Four" }, { "Three","Three", "Four" } , { "Three","Three", "Four" }, { "Three","Three", "Four" }, { "Three","Three", "Four" } }, new String[] { "Column 1", "Column 2", "Column 3" }); goodsTable = new JTable(); goodsTable.setModel(goodsTableModel)； goodsTable.addMouseListener(new MyMouseAdapter()); scrollPane.setViewportView(goodsTable); scrollPane.setBounds(0, 0, 240, 200); scrollPane.setSize(240,120); groundPanel.add(scrollPane); groundPanel.setPreferredSize(new Dimension(240, 200)); add(groundPanel); }
知道了，没有超过默认的出现滚动条行数。Dimension a=new Dimension();
a.height=80;
a.width=200;
goodsTable.setPreferredScrollableViewportSize(a);

给其他遇见类似问题的人一点帮助吧。
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Answer 1

我来领
话说为什么有时候设置了height和width，jtextpane都长出屏幕一大截了可还是不显示scrollbar。。。
就吐槽一下，我来领积分，先采纳了评论里再讨论吧