Different JComboBox in different Cells in a JTable

Question

Hi:
I would like to make a JTable whose content would be several JBox with different values each one. That is to say, a double-column table with the value name in the first column and a range of possible values in the second column,
Despite my efforts I was not able to do that. Every example that I found in the Web does not let different JComboBox per cell. They run with the same cell and values for each column.
Can anybody help me?
Thanks in advance.
Carlos

Answer 1

Here is an example that is based on camickr´s example:
import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.*;
import java.util.*;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.table.*;
import javax.swing.JTable;
import java.util.ArrayList;
import javax.swing.DefaultCellEditor;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
public class TableCell extends JFrame
     JComboBox comboBox1 = new JComboBox();
     JComboBox comboBox2 = new JComboBox();
     JTable table;
     ArrayList<DefaultCellEditor> editors = new ArrayList<DefaultCellEditor>();
     TableCell()
          comboBox1.addItem("Tennis");
          comboBox1.addItem("Fotboll");
          comboBox1.addItem("Baseball");
          comboBox1.addItem("Handboll");
          comboBox2.addItem("USA");
          comboBox2.addItem("Brazil");
          comboBox2.addItem("Australia");
          comboBox2.addItem("China");
          comboBox2.addItem("Egypt");
          DefaultCellEditor dce1 = new DefaultCellEditor(comboBox1);
          DefaultCellEditor dce2 = new DefaultCellEditor(comboBox2);
          editors.add(dce1);
          editors.add(dce2);
          final JTable table = new JTable()
          { // anonym innerklass
               private Class editingClass;
               public TableCellRenderer getCellRenderer(int row, int column)
                    editingClass = null;
                    int modelColumn = convertColumnIndexToModel(column);
                    int modelRow = convertRowIndexToModel(row);
                    if (modelColumn == 1)
                         Class rowClass = getModel().getValueAt(row, modelColumn).getClass();
                         return getDefaultRenderer( rowClass );
                    else
                         return super.getCellRenderer(row, column);
               public TableCellEditor getCellEditor(int row, int column)
                    editingClass = null;
                    int modelColumn = convertColumnIndexToModel(column);
                    int modelRow = convertRowIndexToModel(row);
                    if (modelColumn == 1)
                         if (modelRow == 5)     // cell number 5 in column 1 which is going to show the combobox
                              return (DefaultCellEditor) editors.get(0);
                         if (modelRow == 6)     // cell number 6 in column 1 which is going to show the combobox
                              return (DefaultCellEditor) editors.get(1);
                         else
                              editingClass = getModel().getValueAt(modelRow, modelColumn).getClass();
                              return getDefaultEditor( editingClass );
                    else
                         return super.getCellEditor(row, column);
          table.setModel(new javax.swing.table.DefaultTableModel
               new Object [][]
                      {"String", "I'm a string"},
                    {"Date", new Date()},
                    {"Integer", new Integer(123)},
                    {"Double", new Double(123.45)},
                    {"Boolean", Boolean.TRUE},
                    {"Combobox 1", "COMBOBOX 1"},
                    {"Combobox 2", "COMBOBOX 2"}
               new String [] { "Attribute", "Data" }
          table.setPreferredScrollableViewportSize(table.getPreferredSize());
          JScrollPane scrollPane = new JScrollPane( table );
          getContentPane().add( scrollPane );
     public static void main(String[] args)
          TableCell frame = new TableCell();
          frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
          frame.pack();
          frame.setLocationRelativeTo( null );
          frame.setVisible(true);
}