jtable选中需要修改的行

package abstractTableModel; import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.Iterator; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.JToolBar; import javax.swing.SwingUtilities; public class DemoTable extends JPanel { private JTable table; private DemoTableModel dataModel; public DemoTable() { setLayout(new BorderLayout(0, 0)); JScrollPane scrollPane = new JScrollPane(); add(scrollPane, BorderLayout.CENTER); table = new JTable(); dataModel = new DemoTableModel(); table.setModel(dataModel); scrollPane.setViewportView(table); JToolBar toolBar = new JToolBar(); add(toolBar, BorderLayout.NORTH); JButton btnEdit = new JButton("Edit"); btnEdit.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { int row = table.getSelectedRow(); dataModel.setEditRow(row == -1 ? null : row); } }); toolBar.add(btnEdit); JButton btnCancel = new JButton("Cancel"); btnCancel.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { dataModel.setEditRow(null); } }); toolBar.add(btnCancel); } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { JFrame frame = new JFrame(); frame.getContentPane().add(new DemoTable()); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.pack(); frame.setVisible(true); } }); } }