如何自定JTable ?

Question

如何实现这个效果? 当鼠标等在某个 cell 时, 就会出现旁边的按钮

Answer 1

http://img27.imageshack.us/f/20110221160840.png/

Answer 2

http://img27.imageshack.us/img27/2194/20110221160840.png

Answer 3

http://download.oracle.com/javase/tutorial/uiswing/components/table.html

Answer 4

[code=Jav]apublic class MyTableRenderer extends JButton implements TableCellRenderer {
 
    public Component getTableCellRendererComponent(JTable table, Object value,
            boolean isSelected,
            boolean hasFocus,
            int row, int column) {
 
        
    }
}
[/code]如何实现?