How to show combobox in a table cell

Hi,
I set combobox in a table cell but it shows when I click the cell.
How can I set the combobox and it be visible since the table is showing.

What you have already done, and the resulting behavior is unclear from your post. Post more details.

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Hi Kerry,
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Dear Friends:
I have following successfully running code, each can populate 1 table cell updating in ChangeTableSelectionMain1 change to another table in ChangeTableSelectionMain1 also, or populate 1 table cell in ChangeTableSelectionSub1 change to another table in ChangeTableSelectionSub1 also, But cannot populate table cell updating in ChangeTableSelectionMain1 to ChangeTableSelectionSub1, Please advice how to make populating table cell updating in ChangeTableSelectionMain1 to ChangeTableSelectionSub1 successful??
Thanks.
[1]. main code:
package com.com;
import java.awt.BorderLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JSplitPane;
import java.awt.GridLayout;
public class ChangeTableControl1 implements java.io.Serializable{
     private JFrame                frame;
     public static void main(String args[]) {
          try {
               ChangeTableControl1 window = new ChangeTableControl1();
               window.frame.setVisible(true);
          } catch (Exception e) {
               e.printStackTrace();
      * Create the application
     public ChangeTableControl1() {
          initialize();
      * Initialize the contents of the frame
     private void initialize() {
          frame = new JFrame();
          frame.setBounds(0, 0, 1500, 675);
          final ChangeTableSelectionMain1      c1      = new ChangeTableSelectionMain1();
          final ChangeTableSelectionSub1           c2      = new ChangeTableSelectionSub1();
          JSplitPane sp = new JSplitPane();
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          final JPanel panel = new JPanel();
          panel.setLayout(new GridLayout(1, 2));
          frame.getContentPane().add(panel, BorderLayout.CENTER);
          sp.setLeftComponent(c1);
          sp.setRightComponent(c2);
          sp.setResizeWeight(0.5);
          panel.add(sp);// add right part
            frame.addWindowListener(new WindowAdapter() {
                 public void windowClosing(WindowEvent e) {
                     System.exit(0);
             frame.pack();
             frame.setVisible(true);
}[2]. ChangeTableSelectionSub1
package com.com;
import javax.swing.JTable;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.event.TableModelEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import java.awt.FlowLayout;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import java.text.SimpleDateFormat;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;
import javax.swing.table.*;
import java.awt.BorderLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTable;
public class ChangeTableSelectionSub1 extends JPanel{
       protected         JButton                bt11 = new JButton("Insert before");
       protected         JButton                bt22 = new JButton("Insert after");
       protected         JButton                bt33 = new JButton("Delete");
       protected      ChangeTableSelectionMain1 lm = new ChangeTableSelectionMain1();
public ChangeTableSelectionSub1() {
     JPanel pnl = new JPanel();
     pnl.setMinimumSize(new Dimension(200,600));
          //pnl.setPreferredSize(new Dimension(800,600));
          final JTable tbl1 = new JTable(lm.data,lm.columnNames);
          final JTable tbl2 = new JTable(lm.data,lm.columnNames);
          JScrollPane scr1 = new JScrollPane(tbl1);
          JScrollPane scr2 = new JScrollPane(tbl2);
          lm.tbl1.getSelectionModel().addListSelectionListener(new ListSelectionListener()
          public void valueChanged(ListSelectionEvent lse)
               if (lm.tbl1.getSelectedRow()!=-1)
                    tbl2.clearSelection();
                    System.out.print("[1]. LongguChangeTableSelectionSub get msg from LongguChangeTableSelectionMain");
                    tbl1.clearSelection();
                    revalidate();
          lm.tbl2.getSelectionModel().addListSelectionListener(new ListSelectionListener()
     public void valueChanged(ListSelectionEvent lse)
          if (tbl2.getSelectedRow()!=-1)
               tbl1.clearSelection();
          System.out.print("[2]. LongguChangeTableSelectionSub get msg from LongguChangeTableSelectionMain");
          revalidate();
     pnl.setLayout(new FlowLayout());
     pnl.add(scr1);
     pnl.add(scr2);
     this.add(pnl);
public static void main(String []args)
     ChangeTableSelectionSub1 c = new ChangeTableSelectionSub1();
     JFrame frm = new JFrame();
     frm.setSize(920,400);
     frm.getContentPane().add(c);
     frm.setVisible(true);
}[3]. ChangeTableSelectionMain1
package com.com;
import javax.swing.JTable;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.JScrollPane;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import java.awt.FlowLayout;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.*;
import javax.swing.*;
public class ChangeTableSelectionMain1 extends JPanel{
       protected         JButton                bt11 = new JButton("Insert before");
       protected         JButton                bt22 = new JButton("Insert after");
       protected         JButton                bt33 = new JButton("Delete");
       protected String[] columnNames = {"First Name",
                    "Last Name",
                    "Sport",
                    "# of Years",
                    "Vegetarian"};
       protected Object[][] data = {
          {"Mary", "Campione","Snowboarding", new Integer(5), new Boolean(false)},
          {"Alison", "Huml","Rowing", new Integer(3), new Boolean(true)},
          {"Kathy", "Walrath","Knitting", new Integer(2), new Boolean(false)},
          {"Sharon", "Zakhour","Speed reading", new Integer(20), new Boolean(true)},
          {"Philip", "Milne","Pool", new Integer(10), new Boolean(false)} };
       protected JTable tbl1 = new JTable(data,columnNames);
       protected JTable tbl2 = new JTable(data,columnNames);
public ChangeTableSelectionMain1() {
     JPanel pnl = new JPanel();
     pnl.setMinimumSize(new Dimension(200,600));
          //pnl.setPreferredSize(new Dimension(800,600));
          JScrollPane scr1 = new JScrollPane(tbl1);
          JScrollPane scr2 = new JScrollPane(tbl2);
          tbl1.getSelectionModel().addListSelectionListener(new ListSelectionListener()
          public void valueChanged(ListSelectionEvent lse)
               if (tbl1.getSelectedRow()!=-1)
                    tbl2.clearSelection();
               if (lse.getValueIsAdjusting())
                   System.out.println("Selected from " + lse.getFirstIndex() + " to " + lse.getLastIndex());
               revalidate();
          tbl2.getSelectionModel().addListSelectionListener(new ListSelectionListener()
     public void valueChanged(ListSelectionEvent lse)
          if (tbl2.getSelectedRow()!=-1)
               tbl1.clearSelection();
               revalidate();
     pnl.setLayout(new FlowLayout());
     pnl.add(scr1);
     pnl.add(scr2);
     this.add(pnl);
public static void main(String []args)
     ChangeTableSelectionMain1 c = new ChangeTableSelectionMain1();
     JFrame frm = new JFrame();
     frm.setSize(920,400);
     frm.getContentPane().add(c);
     frm.setVisible(true);
}Message was edited by:
sunnymanman

I have following successfully running code, each can populate 1 table cell updating in ChangeTableSelectionMain1 change to another table in ChangeTableSelectionMain1 also, or populate 1 table cell in ChangeTableSelectionSub1 change to another table in ChangeTableSelectionSub1 also, But cannot populate table cell updating in ChangeTableSelectionMain1 to ChangeTableSelectionSub1, Please advice how to make populating table cell updating in ChangeTableSelectionMain1 to ChangeTableSelectionSub1 successful??
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// it takes almost no time to rate an answer
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