In this chapter, we’re going to take a different approach.
Tables are extremely flexible, useful gadgets. Here, we’re going to show
you how to put tables to work in more advanced situations. Most of these
examples require working on the
TableModel itself or the
TableColumnModel. But once you know what you’re
doing, subclassing these models is fairly easy and gives you a lot of
We will look at four examples:
A scrollable table with row headers. Remember that a
JTable understands column headers but
doesn’t have any concept of a row header. Also, remember that a
JScrollPane understands both column
and row headers. In this example, we’ll show you how to add row
headers to a
JTable and make them
work properly within a
A table that has an extremely large number of rows. Scrolling stops working well when you have more than a few hundred rows. We’ll build a table with 10,000 rows, let you page up and down to select a range of 100 rows within the table, and then scroll back and forth within that more limited range.
A table with a custom editor and renderer for working with cells that contain something other than just text. We’ll represent a numeric value with a slider. The user can also move the slider to edit the value.
TableChart component that
builds pie charts based on the
TableModel class used by
JTable. In this example, the
JTable is almost superfluous, although it provides a convenient way to edit the data in the pie chart. ...