Currently have JTextArea, but would like the output to be in a JTable...

Question

Hi there. I asked this question in the database section, but I ended up getting more questions and separating code, etc. Needless to say, my initial question went unanswered. So, for the purposes of this question, let me get this one thing out of the way:
Yes, I know this is one big file, and that I should have the GUI and DB separated. However, this is for a small project that I'm working on, and for the moment, I'm not too worried about separating class files. As long as the program works as I want it too, so much the better for me.
Now, on to the question at hand. Currently, I have a project that connects to a MySQL DB, and it displays the output from an SQL command in a JTextArea. It looks horribly ugly, as all the columns are not formatted properly. Take a look:
http://img508.imageshack.us/img508/2193/testxe4.jpg
Sure I can see columns, but I would love for the output to be displayed in a neat JTable, which is also much easier on the eyes.
Here is the current code:
package classes;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import java.sql.*;
import java.util.*;
public class SQLClient extends JApplet {
     private Connection connection;
     private Statement statement;
     private JTextArea jtasqlCommand = new JTextArea();
     private JTextArea jtaSQLResult = new JTextArea();
     JTextField jtfUsername = new JTextField();
     JPasswordField jpfPassword = new JPasswordField();
     JButton jbtExecuteSQL = new JButton("Execute SQL Command");
     JButton jbtClearSQLCommand = new JButton("Clear");
     JButton jbtConnectDB1 = new JButton("Connect to Database");
     JButton jbtClearSQLResult = new JButton("Clear Result");
     Border titledBorder1 = new TitledBorder("Enter a SQL Command");
     Border titledBorder2 = new TitledBorder("SQL Execution Result");
     Border titledBorder3 = new TitledBorder("Enter Database Information");
     JLabel jlblConnectionStatus1 = new JLabel("");
     JLabel jlblConnectionStatus2 = new JLabel("Not Connected");
     public void init() {
          JScrollPane jScrollPane1 = new JScrollPane(jtasqlCommand);
          jScrollPane1.setBorder(titledBorder1);
          JScrollPane jScrollPane2 = new JScrollPane(jtaSQLResult);
          jScrollPane2.setBorder(titledBorder2);
          JPanel jPanel1 = new JPanel(new FlowLayout(FlowLayout.RIGHT));
          jPanel1.add(jbtClearSQLCommand);
          jPanel1.add(jbtExecuteSQL);
          JPanel jPanel2 = new JPanel();
          jPanel2.setLayout(new BorderLayout());
          jPanel2.add(jScrollPane1, BorderLayout.CENTER);
          jPanel2.add(jPanel1, BorderLayout.SOUTH);
          jPanel2.setPreferredSize(new Dimension(100, 100));
          JPanel jPanel3 = new JPanel();
          jPanel3.setLayout(new BorderLayout());
          jPanel3.add(jlblConnectionStatus1, BorderLayout.CENTER);
          jPanel3.add(jbtConnectDB1, BorderLayout.EAST);
          JPanel jPanel4 = new JPanel();
          jPanel4.setLayout(new GridLayout(4, 1, 10, 5));
          jPanel4.add(jtfUsername);
          jPanel4.add(jpfPassword);
          JPanel jPanel5 = new JPanel();
          jPanel5.setLayout(new GridLayout(4, 1));
          jPanel5.add(new JLabel("Username"));
          jPanel5.add(new JLabel("Password"));
          JPanel jPanel6 = new JPanel();
          jPanel6.setLayout(new BorderLayout());
          jPanel6.setBorder(titledBorder3);
          jPanel6.add(jPanel4, BorderLayout.CENTER);
          jPanel6.add(jPanel5, BorderLayout.WEST);
          JPanel jPanel7 = new JPanel();
          jPanel7.setLayout(new BorderLayout());
          jPanel7.add(jPanel3, BorderLayout.SOUTH);
          jPanel7.add(jPanel6, BorderLayout.CENTER);
          JPanel jPanel8 = new JPanel();
          jPanel8.setLayout(new BorderLayout());
          jPanel8.add(jPanel2, BorderLayout.CENTER);
          jPanel8.add(jPanel7, BorderLayout.WEST);
          JPanel jPanel9 = new JPanel();
          jPanel9.setLayout(new BorderLayout());
          jPanel9.add(jlblConnectionStatus2, BorderLayout.EAST);
          jPanel9.add(jbtClearSQLResult, BorderLayout.WEST);
          this.add(jPanel8, BorderLayout.NORTH);
          this.add(jScrollPane2, BorderLayout.CENTER);
          this.add(jPanel9, BorderLayout.SOUTH);
          jbtExecuteSQL.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e) {
          executeSQL();
          jbtConnectDB1.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e) {
          connectToDB();
          jbtClearSQLCommand.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e) {
          jtasqlCommand.setText(null);
          jbtClearSQLResult.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e) {
          jtaSQLResult.setText(null);
     private void connectToDB() {
          String driver = "com.mysql.jdbc.Driver";
          String url = "jdbc:mysql://localhost:3306/petstore2002";
          String username = jtfUsername.getText().trim();
          String password = new String(jpfPassword.getPassword());
          try {
               Class.forName(driver);
               connection = DriverManager.getConnection(url, username, password);
               jlblConnectionStatus2.setText("Connected To Database");
          catch (java.lang.Exception ex) {
               ex.printStackTrace();
     private void executeSQL() {
          if (connection == null) {
               jtaSQLResult.setText("Please connect to a database first");
               return;
          else {
               String sqlCommands = jtasqlCommand.getText().trim();
               String[] commands = sqlCommands.replace('\n', ' ').split(";");
               for (String aCommand: commands) {
                    if (aCommand.trim().toUpperCase().startsWith("SELECT")) {
                         processSQLSelect(aCommand);
                    else {
                         processSQLNonSelect(aCommand);
     private void processSQLSelect(String sqlCommand) {
          try {
               statement = connection.createStatement();
               ResultSet resultSet = statement.executeQuery(sqlCommand);
               int columnCount = resultSet.getMetaData().getColumnCount();
               String row = "";
               for (int i = 1; i <= columnCount; i++) {
                    row += resultSet.getMetaData().getColumnName(i) + "\t";
               jtaSQLResult.append(row + '\n');
               while (resultSet.next()) {
                    row = "";
                    for (int i = 1; i <= columnCount; i++) {
                         row += resultSet.getString(i) + "\t";
                    jtaSQLResult.append(row + '\n');
          catch (SQLException ex) {
               jtaSQLResult.setText(ex.toString());
     private void processSQLNonSelect(String sqlCommand) {
          try {
               statement = connection.createStatement();
               statement.executeUpdate(sqlCommand);
               jtaSQLResult.setText("SQL command executed");
          catch (SQLException ex) {
               jtaSQLResult.setText(ex.toString());
     public static void main(String[] args) {
          SQLClient applet = new SQLClient();
          JFrame frame = new JFrame();
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.setTitle("Interactive SQL Client");
          frame.getContentPane().add(applet, BorderLayout.CENTER);
          applet.init();
          applet.start();
          frame.setSize(800, 600);
          Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
          frame.setLocation((d.width - frame.getSize().width) / 2,
          (d.height - frame.getSize().height) / 2);
          frame.setVisible(true);
}Right now it works fine, and I am planning on using this as an initial prototype for the presentation. Can I get some help on getting the output displayed into a JTable? How would I go abouts doing the conversion? I'm fairly new to Java (taking a course on it), and I'm worried that if I change one line of code the whole thing will get ruined and I'll need to start from scratch.

Answer 1

-> It sounds like you're getting annoyed with the amount of people asking perfectly legitimate questions
Your expectations are not legitimate. We attempt to understand your problem and give you the resources to solve the problem. Many times those resources are in the form of a tutorial or a reference to the API. We are not here to write code for you.
I pointed you in the right direction. Its up to you do to some learning on your own. You have not made the slightest effort to understand how to use a JTable. You have not made the slightest effort to search the forum to see if you question has been asked before (it has).
Your attitude and effort determines how much effort we make. Frankly you have made no effort whatsoever to solve you problem so as far as I am concerned you are on you own. Apparently I am not the only one who thinks you should be making more of an effort based on all the other advice you have received.