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JTable

 
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Please help.
I would like to get a table with columnHeads, rows and scrollbars.
The following code does not show scrollbars.
table = new JTable( rows, columnHeads );
JScrollPane scrollpane = new JScrollPane( table );
getContentPane().add( scrollpane, BorderLayout.CENTER );
The following code does show scrollbars but does not show "columnHeads".
table = new JTable( rows, columnHeads );
JPanel panelTable = new JPanel();
panelTable.add(table);
JScrollPane scrollpane = new JScrollPane( panelTable );
getContentPane().add( scrollpane, BorderLayout.CENTER );
What am I doing wrong?
 
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