在JTable单元格中实现可选择的JComboBox，经典例子源码（如设置性别）[@more@]性别的例子，使用方法如下：
TableColumnModel tcm = table.getColumnModel();
TableColumn tc = tcm.getColumn(genderColumn);// genderColumn为你的性别的例序号。
tc.setCellRenderer(new GenderRenderer());
tc.setCellEditor(new GenderEditor());
限制如下，该列类型为boolean。

/**
* GenderEditor.java
*/
import java.awt.Component;
import java.util.EventObject;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;

public class GenderEditor extends JComboBox implements TableCellEditor {

protected EventListenerList listenerList = new EventListenerList();
protected ChangeEvent changeEvent = new ChangeEvent(this);

public GenderEditor() {
super();
addItem("Male");
addItem("Female");
addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent event) {
fireEditingStopped();
}
});
}

public void addCellEditorListener(CellEditorListener listener) {
listenerList.add(CellEditorListener.class, listener);
}

public void removeCellEditorListener(CellEditorListener listener) {
listenerList.remove(CellEditorListener.class, listener);
}

protected void fireEditingStopped() {
CellEditorListener listener;
Object[] listeners = listenerList.getListenerList();
for (int i = 0; i < listeners.length; i++) {
if (listeners[i] == CellEditorListener.class) {
listener = (CellEditorListener)listeners[i + 1];
listener.editingStopped(changeEvent);
}
}
}

protected void fireEditingCanceled() {
CellEditorListener listener;
Object[] listeners = listenerList.getListenerList();
for (int i = 0; i < listeners.length; i++) {
if (listeners[i] == CellEditorListener.class) {
listener = (CellEditorListener)listeners[i + 1];
listener.editingCanceled(changeEvent);
}
}
}

public void cancelCellEditing() {
fireEditingCanceled();
}

public boolean stopCellEditing() {
fireEditingStopped();
return true;
}

public boolean isCellEditable(EventObject event) {
return true;
}

public boolean shouldSelectCell(EventObject event) {
return true;
}

public Object getCellEditorValue() {
return new Boolean(getSelectedIndex() == 0 ? true : false);
}

public Component getTableCellEditorComponent(JTable table,
Object value, boolean isSelected, int row, int column) {
boolean isMale = ((Boolean)value).booleanValue();
setSelectedIndex(isMale ? 0 : 1);
return this;
}

}


/**
* GenderRender.java
*/
import java.awt.Component;
import javax.swing.JComboBox;
import javax.swing.JTable;
import javax.swing.table.TableCellRenderer;

public class GenderRenderer extends JComboBox implements TableCellRenderer {

public GenderRenderer() {
super();
addItem("Male");
addItem("Female");
}

public Component getTableCellRendererComponent(JTable table,
Object value, boolean isSelected, boolean hasFocus,
int row, int column) {

if (isSelected) {
setForeground(table.getSelectionForeground());
super.setBackground(table.getSelectionBackground());
} else {
setForeground(table.getForeground());
setBackground(table.getBackground());
}

boolean isMale = ((Boolean)value).booleanValue();
setSelectedIndex(isMale ? 0 : 1);
return this;
}

}