java2s.com上的示例看起来可以正常工作，然后再进行示例（例如，我将JComboBoxes编码为快速示例，并为今天的Swing添加/更改）
import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.UIManager.LookAndFeelInfo;import javax.swing.table.*;public class EachRowEditorExample extends Jframe { private static final long serialVersionUID = 1L; public EachRowEditorExample() { super("EachRow Editor Example"); try { for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) { System.out.println(info.getName()); if ("Nimbus".equals(info.getName())) { UIManager.setLookAndFeel(info.getClassName()); break; } } } catch (UnsupportedLookAndFeelException e) { // handle exception } catch (ClassNotFoundException e) { // handle exception } catch (InstantiationException e) { // handle exception } catch (IllegalAccessException e) { // handle exception } DefaultTableModel dm = new DefaultTableModel(); dm.setDataVector(new Object[][]{{"Name", "MyName"}, {"Gender", "Male"}, {"Color", "Fruit"}}, new Object[]{"Column1", "Column2"}); JTable table = new JTable(dm); table.setRowHeight(20); JComboBox comboBox = new JComboBox(); comboBox.addItem("Male"); comboBox.addItem("Female"); comboBox.addComponentListener(new ComponentAdapter() { @Override public void componentShown(ComponentEvent e) { final JComponent c = (JComponent) e.getSource(); SwingUtilities.invokeLater(new Runnable() { @Override public void run() { c.requestFocus(); System.out.println(c); if (c instanceof JComboBox) { System.out.println("a"); } } }); } }); JComboBox comboBox1 = new JComboBox(); comboBox1.addItem("Name"); comboBox1.addItem("MyName"); comboBox1.addComponentListener(new ComponentAdapter() { @Override public void componentShown(ComponentEvent e) { final JComponent c = (JComponent) e.getSource(); SwingUtilities.invokeLater(new Runnable() { @Override public void run() { c.requestFocus(); System.out.println(c); if (c instanceof JComboBox) { System.out.println("a"); } } }); } }); JComboBox comboBox2 = new JComboBox(); comboBox2.addItem("Banana"); comboBox2.addItem("Apple"); comboBox2.addComponentListener(new ComponentAdapter() { @Override public void componentShown(ComponentEvent e) { final JComponent c = (JComponent) e.getSource(); SwingUtilities.invokeLater(new Runnable() { @Override public void run() { c.requestFocus(); System.out.println(c); if (c instanceof JComboBox) { System.out.println("a"); } } }); } }); EachRowEditor rowEditor = new EachRowEditor(table); rowEditor.setEditorAt(0, new DefaultCellEditor(comboBox1)); rowEditor.setEditorAt(1, new DefaultCellEditor(comboBox)); rowEditor.setEditorAt(2, new DefaultCellEditor(comboBox2)); table.getColumn("Column2").setCellEditor(rowEditor); JScrollPane scroll = new JScrollPane(table); getContentPane().add(scroll, BorderLayout.CENTER); setPreferredSize(new Dimension(400, 120)); setLocation(150, 100); pack(); setVisible(true); } public static void main(String[] args) { EachRowEditorExample frame = new EachRowEditorExample(); frame.addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent e) { System.exit(0); } }); }}只需添加EachRowEditor类
