当我在jscrollpane上添加jtable时，水平滚动条不起作用

Question

I have a JTable on a JScrollPane. I want that table occupied the entire scroll. So I add this: table.setAutoResizeMode(JTable.AUTO_RESIZE_All_Columns); It works good when there are only a few columns. But when there are a lot of columns it looks like that:

As you can see there are too narrow columns. I try to add this code for all columns: table.getColumnModel().getColumn(1).setMinWidth(75); It works. And I added this code to JScrollPane: setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS); But horisontal scroll bar doesn't work:

You can see it, but it doesn't work. I know that I could solve all my problems with this code:

table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF)

But in this case my table doesn't occupied the entire scroll. So, I want that columns extended the full width of the scroll when there are only a few columns and I want that columns are not narrowed to less than a certain value when there are a lot of columns. And I want to have a horizontal scroll bar. Is it possible to do that?

Sorry, it was a silly question. I could to do all what I want with this code:

if (getColumnModel().getColumnCount() > 13)
    setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
else
    setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);

But if somebody kmows more elegant solution show it please. It will be really helpful for me.

Answer 1

Duplicate.
You can find here 2 elegant solutions.
One of which is:

jTable.getParent().addComponentListener(new ComponentAdapter() {
    @Override
    public void componentResized(final ComponentEvent e) {
        if (jTable.getPrefer1sredSize().width < jTable.getParent().getWidth()) {
            jTable.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
        } else {
            jTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
        }
    }
});