swing_AbstractTableModel 创建表格

 

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();  
    }