import javax.swing.table.AbstractTableModel;  

 public class MyTable extends AbstractTableModel {

     /**

      *

      */

     private static final long serialVersionUID = 1L;

     Object[][] p = {

             { "11", "Taipei", new Integer(66), new Integer(32),

                     new Integer(98), new Boolean(false), new Boolean(false) },

             { "22", "ChiaYi", new Integer(85), new Integer(69),

                     new Integer(154), new Boolean(true), new Boolean(false) },

             { "33", "ChiaYi", new Integer(85), new Integer(69),

                         new Integer(154), new Boolean(true), new Boolean(false) },

             { "44", "ChiaYi", new Integer(85), new Integer(69),

                             new Integer(154), new Boolean(true), new Boolean(false) }

     };

     String[] n = { "姓名", "居住地", "语文", "数学", "总分", "及格" };  

     public int getColumnCount() {

         return n.length;

     }  

     public int getRowCount() {

         return p.length;

     }  

     public String getColumnName(int col) {

        return n[col];

     }  

     public Object getValueAt(int row, int col) {

         return p[row][col];

      //   return null;

     }  

     public Class getColumnClass(int c) {

         return getValueAt(0, c).getClass();

       //  return null;

     }  

     public boolean isCellEditable(int rowIndex, int columnIndex) {

         return true;

     }  

     public void setValueAt(Object value, int row, int col) {

         p[row][col] = value;

        fireTableCellUpdated(row, col); // 该方法触发TableModelEvent 事件，tableChanged()会进行相应的处理

     }  

     public void mySetValueAt(Object value, int row, int col) {

         p[row][col] = value;

         //fireTableCellUpdated(row, col);  //此处不能有，否则会陷入对自身的调用，导致内存溢出。

     }

 }  

 import java.awt.BorderLayout;

 import java.awt.Dimension;

 import java.awt.event.WindowAdapter;

 import java.awt.event.WindowEvent;

 import javax.swing.DefaultCellEditor;

 import javax.swing.JComboBox;

 import javax.swing.JFrame;

 import javax.swing.JLabel;

 import javax.swing.JScrollPane;

 import javax.swing.JTable;

 import javax.swing.event.TableModelEvent;

 import javax.swing.event.TableModelListener;  

 public class TableEventHandle implements TableModelListener {

     JTable table = null;

     MyTable mt = null;  //tableModel

     JLabel label = null;  

     public TableEventHandle() {

         JFrame f = new JFrame();

         mt = new MyTable();

         mt.addTableModelListener(this);

         table = new JTable(mt);

         JComboBox c = new JComboBox();

         c.addItem("Taipei");

         c.addItem("ChiaYi");

         c.addItem("HsinChu");

         table.getColumnModel().getColumn(1)

                 .setCellEditor(new DefaultCellEditor(c)); 

         table.setPreferredScrollableViewportSize(new Dimension(550, 100)); //设置表格默认展现视图大小 

         JScrollPane s = new JScrollPane(table);  //滚动条

         f.getContentPane().add(s, BorderLayout.CENTER);

         label = new JLabel("修改字段位置：");

         f.getContentPane().add(label, BorderLayout.SOUTH);

         f.setTitle("TableEventHandle");

         f.pack();

         f.setVisible(true);

         f.addWindowListener(new WindowAdapter() {

             public void windowClosing(WindowEvent e) {

                 System.exit(0);

             }

         });

     } 

   @Override

     public void tableChanged(TableModelEvent e) {

         int row = e.getFirstRow();

         int column = e.getColumn();  

         label.setText("修改字段位置：" + (row + 1) + "行" + (column + 1) + "列");  

         boolean cheat = ((Boolean) (mt.getValueAt(row, 6))).booleanValue();

         int grade1 = ((Integer) (mt.getValueAt(row, 2))).intValue();

         int grade2 = ((Integer) (mt.getValueAt(row, 3))).intValue();  

         int total = grade1 + grade2; 

         if (cheat) {

             if (total > 120)

                 mt.mySetValueAt(new Integer(119), row, 4); //只更新值，不触发事件。改为mt.setValueAt()也可。但会不断触发事件，java应该做了相应处理，否则会内存溢出。

             else

                 mt.mySetValueAt(new Integer(total), row, 4);

                 mt.mySetValueAt(new Boolean(false), row, 5);

         } else {

             if (total > 120)

                 mt.mySetValueAt(new Boolean(true), row, 5);

             else

                 mt.mySetValueAt(new Boolean(false), row, 5);

                 mt.mySetValueAt(new Integer(total), row, 4);

         } 

         table.repaint();

     } 

     public static void main(String args[]) {

           new TableEventHandle();

     }