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我在体育和艺术专栏中显示了一个带有组合框编辑器的表格。即使以随机方式选择的项目也会添加到列表中。我的问题是将名字列中的内容正确映射到体育列和艺术列。我的代码,基于TableRenderDemo,在这里给出。

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/*
 * TableRenderDemo.java requires no other files.
 */

import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.LinkedList;

public class TableRenderDemo extends JPanel {
    private boolean DEBUG = false;
    static LinkedList<String> helpStringFirst = new  LinkedList<String>();
    static LinkedList<String> helpStringSecond = new  LinkedList<String>();
 static LinkedList<String> arts = new LinkedList<String>();
 Object[][] data = {
            {"Kathy", "Smith", "Snowboarding", "PencilArt", new Boolean(false)},
            {"John", "Doe", "Rowing", "Drawing", new Boolean(true)},
            {"Sue", "Black","Knitting", "Yoga", new Boolean(false)},
            {"Jane", "White","Speed reading","Music", new Boolean(true)},
            {"Joe", "Brown", "Pool", "Dance", new Boolean(false)}
            };
    public TableRenderDemo() {
        super(new GridLayout(1,0));

        String[] columnNames = {"First Name",
                                "Last Name",
                                "Sports",
                                "Arts",
                                "Vegetarian"};


        final Object[] longValues = {"Jane", "Kathy",
              "None of the above",
              new Integer(20), Boolean.TRUE};

        final JTable table = new JTable(data, columnNames);
        table.setPreferredScrollableViewportSize(new Dimension(1000, 200));
        table.setFillsViewportHeight(true);
        //Create the scroll pane and add the table to it.
        JScrollPane scrollPane = new JScrollPane(table);

             setUpSportColumn(table, table.getColumnModel().getColumn(2));
             setUpArtsColumn(table, table.getColumnModel().getColumn(3));

        add(scrollPane);

    }

  public void setUpSportColumn(JTable table,
                               TableColumn sportColumn) {
      //Set up the editor for the sport cells.
      final JComboBox comboBox = new JComboBox();
      comboBox.addItem("Snowboarding");
      comboBox.addItem("Rowing");
      comboBox.addItem("Knitting");
      comboBox.addItem("Speed reading");
      comboBox.addItem("Pool");
      comboBox.addItem("None of the above");
      sportColumn.setCellEditor(new DefaultCellEditor(comboBox));

      //Set up tool tips for the sport cells.
      DefaultTableCellRenderer renderer =
              new DefaultTableCellRenderer();
      renderer.setToolTipText("Click for combo box");
      sportColumn.setCellRenderer(renderer);
      comboBox.addItemListener(new ItemListener() {

          @Override
          public void itemStateChanged(ItemEvent e) {                     
                  if ((e.getStateChange() == ItemEvent.SELECTED) ) {                      
                      String str = comboBox.getSelectedItem().toString();
                      System.out.println("str>>:"+str);  
                      setLabelText(str);
                  }                         
          }
      });

  }
  public void setUpArtsColumn(JTable table,
          TableColumn artColumn) {
    //Set up the editor for the sport cells.
    final JComboBox comboBox1 = new JComboBox();
    comboBox1.addItem("Pencilsketch");
    comboBox1.addItem("Drawing");
    comboBox1.addItem("music");
    comboBox1.addItem("Dance");
    comboBox1.addItem("Yoga");
    comboBox1.addItem("None of the above");
    artColumn.setCellEditor(new DefaultCellEditor(comboBox1));  
    //Set up tool tips for the sport cells.
    DefaultTableCellRenderer renderer =
    new DefaultTableCellRenderer();
    renderer.setToolTipText("Click for combo box");
    artColumn.setCellRenderer(renderer);
    comboBox1.addItemListener(new ItemListener() {

      @Override
      public void itemStateChanged(ItemEvent e) {
          if ((e.getStateChange() == ItemEvent.SELECTED)) {

              String str1 = comboBox1.getSelectedItem().toString();
             System.out.println("str:"+str1);
              setLabelText1(str1);
          }
      }
  });   
  }
  private static void setLabelText(String str1) {

      helpStringFirst.add(str1);
      System.out.println("helpStringFirst:"+helpStringFirst);
  }
  private static void setLabelText1(String str2) {

      helpStringSecond.add(str2);
      System.out.println("helpStringSecond:"+helpStringSecond);  
  }

    /**
     * Create the GUI and show it.  For thread safety,
     * this method should be invoked from the
     * event-dispatching thread.
     */
    private static void createAndShowGUI() {
        //Create and set up the window.
        JFrame frame = new JFrame("SimpleTableDemo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //Create and set up the content pane.
        TableRenderDemo newContentPane = new TableRenderDemo();
        newContentPane.setOpaque(true); //content panes must be opaque
        frame.setContentPane(newContentPane);

        //Display the window.
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.          
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}
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