combining two classes

[ben riches]

Hello All,
I have two classes and I want to use one class with the other class, The first class pulls out the table names from a database and puts the names into a comboBox then when the user selectes a table in the first comboBox the second comboBox list all the column names in that table.
The second class is a JTable with every cell holding a comboBox displaying in each comboBox 1,2,3 and 4,5,6.
How I can I get all the comboBoxes in the first row on the JTable to display all the TableNames that are in the comboxes in the 1st class?
Thanks Ben
1ST CLASS:

import java.awt.*;
 import java.awt.event.*;
 import javax.swing.*;
 import java.sql.*;
 public class ComboBoxDemo extends JPanel {
   static Connection conn;
   DatabaseMetaData DMD;
   JComboBox group = new JComboBox();
    JComboBox groupList = new JComboBox();
    public ComboBoxDemo()  {
try  { 
     // Load the database driver
   Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver" ) ;
    conn = DriverManager.getConnection( "jdbc :-o	 dbc:myProject" ) ;
   DMD=conn .getMetaData();
   ResultSet rs=DMD.getTables(null,null,null,new String[]{"TABLE"});
   while(rs.next()) {
group.addItem((String)rs.getString(3));
   }
   rs.close() ;
 } catch (SQLException se ) {
   System.out.println( "SQL Exception: " + se ) ;
 } catch (Exception e ) {
   System.out.println( e ) ;
 }
group.addActionListener(new ActionListener()  {
   public void actionPerformed(ActionEvent e)  {
String tbl = (String)group.getSelectedItem();
 try {
      Statement st=conn.createStatement();
    st.execute("SELECT * FROM "+tbl+" WHERE 1=0");
    ResultSet rs=st.getResultSet();
    ResultSetMetaData md=rs.getMetaData();
    groupList.removeAllItems();
   for (int i=1;i<=md.getColumnCount();i++) {
groupList.addItem(md.getColumnName(i));
    }
   st.close() ;
 } catch (SQLException se ) {
   System.out.println( "SQL Exception: " + se ) ;
 } catch (Exception ex ) {
   System.out.println( ex ) ;
 }
      }
});
 // Layout the demo
setLayout(new BorderLayout());
 add(group, BorderLayout.NORTH);
 add(groupList, BorderLayout.SOUTH);
 setBorder(BorderFactory.createEmptyBorder(200,20,20,20));
    }
   public static void main(String s[])  {
JFrame frame = new JFrame("ComboBoxDemo");
 frame.addWindowListener(new WindowAdapter()  {
   public void windowClosing(WindowEvent e)  {
try { 
     conn.close() ;
 } catch (Throwable t) {
}
System.exit(0);
   }
});
 frame.setContentPane(new ComboBoxDemo());
 frame.pack(); frame.setVisible(true);
    }
}

2ND CLASS:

import javax.swing.*;
import javax.swing.table.*;
import java.awt.event.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.*;
public class ComboBoxTable {
  public static void main(String[] args) {
int j=10;
      String[][] data = new String[j][2];
      for (int k=0; k<j; k++){
         String[] row = {"",""};
         data[k] = row;
      }
   
    String[] colNames = {"Column A", "Column B"};
    
    JTable tbl = new JTable(data, colNames);
   String[] combo1Values = {"One","Two","Three"};
   String[] combo2Values = {"Four","Five","Six"};
// Create the combo box editor
    JComboBox comboBox = new JComboBox(combo1Values);
    comboBox.setEditable(true);
    DefaultCellEditor editor = new DefaultCellEditor(comboBox);
// ADDED IN MY ATTEMPT TO HAVE TO COLUMNS WITH COMBOBOXES
    JComboBox comboBox2 = new JComboBox(combo2Values);
    comboBox2.setEditable(true);
    DefaultCellEditor editor2 = new DefaultCellEditor(comboBox2);
// Assign the editor to the second column
    TableColumnModel tcm = tbl.getColumnModel();
    tcm.getColumn(0).setCellEditor(editor2);
 // ADDED
    tcm.getColumn(1).setCellEditor(editor);
// Set column widths
    tcm.getColumn(0).setPreferredWidth(200);
    tcm.getColumn(1).setPreferredWidth(100);
// Set row heighht
    tbl.setRowHeight(20);
    tbl.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
    tbl.setPreferredScrollableViewportSize(tbl.getPreferredSize());
JFrame f = new JFrame("ComboBoxDemo");
    f.getContentPane().add(new JScrollPane(tbl), "Center");
    f.pack();
    f.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent evt) {
         System.exit(0);
      }
    });
    f.setVisible(true);
  }
}