一个简单的JTABLE运用combox的例子

package com.viruser.applet; import javax.swing.table.AbstractTableModel; import javax.swing.*; import java.applet.Applet; import java.awt.*; import java.awt.event.*; public class ColumnModelTest extends Applet{ JComboBox c; boolean bChange; public ColumnModelTest() { JFrame f = new JFrame(); /*由于我们的MyTable类继承了AbstractTableModel并且实作了getColmunCount(), * getRowCount(),getValueAt()方法.因此我们可以通 *过MyTable来产生TableModel的实体. */ MyTable mt=new MyTable(); ViruserTable t=new ViruserTable(mt);//我们利用MyTable来建立JTable. c = new JComboBox();//建立一个JComboBox的对象. c.addItem("南京");//我们在新建立的JComboBox对象里新增三个项目. c.addItem("上海"); c.addItem("广州"); bChange = false; ItemListener listener=new ItemListener(){ public void itemStateChanged(ItemEvent e){ if(!bChange && e.getStateChange() == 2 ) // 2 == SELECTED { bChange = true; c.addItem("你妹的"); } else { bChange = false; } } }; c.addItemListener(listener); /*我们利用JTable所提供的getTableColumnModel()方法取得TableColumnModel对象,再由TableColumnModel类所提供的getColumn()方 *法取得TableColumn对象,TableColumn类可针对表格中的每一行做具体的设置,例如设置字段的宽度,某行的标头,设置输入较复杂的 *数据类型等等.在这里,我们利用TableColumn类所提供的setCellEditor()方法,将JComboBox作为第二行的默认编辑组件. */ // t.getColumnModel().getColumn(1).setCellEditor(new DefaultCellEditor(c)); t.SetColumnCombox(1, c); t.setPreferredScrollableViewportSize(new Dimension(550, 30)); JScrollPane s = new JScrollPane(t); f.getContentPane().add(s, BorderLayout.CENTER); f.setTitle("test"); f.pack(); f.setVisible(true); f.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); } public static void main(String args[]) { new ColumnModelTest(); } } class MyTable extends AbstractTableModel{ private static final long serialVersionUID = 1L; Object[][] p = { {"张三", "南京",new Integer(66), new Integer(32),new Boolean(false)}, {"李四", "上海",new Integer(85), new Integer(69),new Boolean(false)}, }; String[] n = {"姓名", "地址", "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]; } public Class getColumnClass(int c) { return getValueAt(0, c).getClass(); } /** * 例如勾选CheckBox或是直接修改某个字段的数字,需要重写这两个方法 */ 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); } }