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[skc881]

I java programming, how to view database details in java program itself by clicking button, if i save data of java program in database(i.e. access or sql)? Provide me code for this.

[Vishal Gupta]

It'll help U:

Java Database Connectivity

[nitish_mythology]

If u hv ques thn ask Jguru....
HE IS TRULY JAVA GURU!! UR PRB WLL B EASILY SOLVED!

For more info hv a look
http://www.thinkdigit.com/forum/memb...poster&t=36461

[Zeeshan Quireshi]

Originally Posted by nitish_mythology

If u hv ques thn ask Jguru....
HE IS TRULY JAVA GURU!! UR PRB WLL B EASILY SOLVED!

For more info hv a look
http://www.thinkdigit.com/forum/memb...poster&t=36461

unanimously agree

[JGuru]

Here is the JAVA code for JDBC Connectivity

//JDBCAdapter.java
/*
 * @(#)JDBCAdapter.java	1.16
 */

/**
 * An adaptor, transforming the JDBC interface to the TableModel interface.
 *
 * @version 1.20 
 * @author JGuru
 */

import java.util.Vector;
import java.sql.*;
import javax.swing.table.AbstractTableModel;
import javax.swing.event.TableModelEvent;

public class JDBCAdapter extends AbstractTableModel {
    Connection          connection;
    Statement           statement;
    ResultSet           resultSet;
    String[]            columnNames = {};
    Vector		rows = new Vector();
    ResultSetMetaData   metaData;

    public JDBCAdapter(String url, String driverName,
                       String user, String passwd) {
        try {
            Class.forName(driverName);
            System.out.println("Opening db connection");

            connection = DriverManager.getConnection(url, user, passwd);
            statement = connection.createStatement();
        }
        catch (ClassNotFoundException ex) {
            System.err.println("Cannot find the database driver classes.");
            System.err.println(ex);
        }
        catch (SQLException ex) {
            System.err.println("Cannot connect to this database.");
            System.err.println(ex);
        }
     }

    public void executeQuery(String query) {
        if (connection == null || statement == null) {
            System.err.println("There is no database to execute the query.");
            return;
        }
        try {
            resultSet = statement.executeQuery(query);
            metaData = resultSet.getMetaData();

            int numberOfColumns =  metaData.getColumnCount();
            columnNames = new String[numberOfColumns];
            // Get the column names and cache them.
            // Then we can close the connection.
            for(int column = 0; column < numberOfColumns; column++) {
                columnNames[column] = metaData.getColumnLabel(column+1);
            }

            // Get all rows.
            rows = new Vector();
            while (resultSet.next()) {
                Vector newRow = new Vector();
                for (int i = 1; i <= getColumnCount(); i++) {
	            newRow.addElement(resultSet.getObject(i));
                }
                rows.addElement(newRow);
            }
            //  close(); Need to copy the metaData, bug in jdbc:odbc driver.
            fireTableChanged(null); // Tell the listeners a new table has arrived.
        }
        catch (SQLException ex) {
            System.err.println(ex);
        }
    }

    public void close() throws SQLException {
        System.out.println("Closing db connection");
        resultSet.close();
        statement.close();
        connection.close();
    }

    protected void finalize() throws Throwable {
        close();
        super.finalize();
    }

    //////////////////////////////////////////////////////////////////////////
    //
    //             Implementation of the TableModel Interface
    //
    //////////////////////////////////////////////////////////////////////////

    // MetaData

    public String getColumnName(int column) {
        if (columnNames[column] != null) {
            return columnNames[column];
        } else {
            return "";
        }
    }

    public Class getColumnClass(int column) {
        int type;
        try {
            type = metaData.getColumnType(column+1);
        }
        catch (SQLException e) {
            return super.getColumnClass(column);
        }

        switch(type) {
        case Types.CHAR:
        case Types.VARCHAR:
        case Types.LONGVARCHAR:
            return String.class;

        case Types.BIT:
            return Boolean.class;

        case Types.TINYINT:
        case Types.SMALLINT:
        case Types.INTEGER:
            return Integer.class;

        case Types.BIGINT:
            return Long.class;

        case Types.FLOAT:
        case Types.DOUBLE:
            return Double.class;

        case Types.DATE:
            return java.sql.Date.class;

        default:
            return Object.class;
        }
    }

    public boolean isCellEditable(int row, int column) {
        try {
            return metaData.isWritable(column+1);
        }
        catch (SQLException e) {
            return false;
        }
    }

    public int getColumnCount() {
        return columnNames.length;
    }

    // Data methods

    public int getRowCount() {
        return rows.size();
    }

    public Object getValueAt(int aRow, int aColumn) {
        Vector row = (Vector)rows.elementAt(aRow);
        return row.elementAt(aColumn);
    }

    public String dbRepresentation(int column, Object value) {
        int type;

        if (value == null) {
            return "null";
        }

        try {
            type = metaData.getColumnType(column+1);
        }
        catch (SQLException e) {
            return value.toString();
        }

        switch(type) {
        case Types.INTEGER:
        case Types.DOUBLE:
        case Types.FLOAT:
            return value.toString();
        case Types.BIT:
            return ((Boolean)value).booleanValue() ? "1" : "0";
        case Types.DATE:
            return value.toString(); // This will need some conversion.
        default:
            return "\""+value.toString()+"\"";
        }

    }

    public void setValueAt(Object value, int row, int column) {
        try {
            String tableName = metaData.getTableName(column+1);
            // Some of the drivers seem buggy, tableName should not be null.
            if (tableName == null) {
                System.out.println("Table name returned null.");
            }
            String columnName = getColumnName(column);
            String query =
                "update "+tableName+
                " set "+columnName+" = "+dbRepresentation(column, value)+
                " where ";
            // We don't have a model of the schema so we don't know the
            // primary keys or which columns to lock on. To demonstrate
            // that editing is possible, we'll just lock on everything.
            for(int col = 0; col<getColumnCount(); col++) {
                String colName = getColumnName(col);
                if (colName.equals("")) {
                    continue;
                }
                if (col != 0) {
                    query = query + " and ";
                }
                query = query + colName +" = "+
                    dbRepresentation(col, getValueAt(row, col));
            }
            System.out.println(query);
            System.out.println("Not sending update to database");
            // statement.executeQuery(query);
        }
        catch (SQLException e) {
            //     e.printStackTrace();
            System.err.println("Update failed");
        }
        Vector dataRow = (Vector)rows.elementAt(row);
        dataRow.setElementAt(value, column);

    }
}

 The second file is as follows:
//TableExample.java 
/*
 * @(#)TableExample.java	
 */

/**
 * A a UI around the JDBCAdaptor, allowing database data to be interactively
 * fetched, sorted and displayed using Swing.
 *
 * NOTE: This example uses a modal dialog via the static convenience methods in
 * the JOptionPane. Use of modal dialogs requires JDK 1.1.4 or greater.
 *
 * @version 1.19 
 * @author JGuru
 */

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;
import javax.swing.border.*;

public class TableExample implements LayoutManager {
    static String[] ConnectOptionNames = { "Connect" };
    static String   ConnectTitle = "Connection Information";

    Dimension   origin = new Dimension(0, 0);

    JButton     fetchButton;
    JButton     showConnectionInfoButton;

    JPanel      connectionPanel;
    JFrame      frame; // The query/results window.

    JLabel      userNameLabel;
    JTextField  userNameField;
    JLabel      passwordLabel;
    JTextField  passwordField;
    // JLabel      queryLabel;
    JTextArea   queryTextArea;
    JComponent  queryAggregate;
    JLabel      serverLabel;
    JTextField  serverField;
    JLabel      driverLabel;
    JTextField  driverField;

    JPanel      mainPanel;

    TableSorter sorter;
    JDBCAdapter dataBase;
    JScrollPane tableAggregate;

    /**
     * Brings up a JDialog using JOptionPane containing the connectionPanel.
     * If the user clicks on the 'Connect' button the connection is reset.
     */
    void activateConnectionDialog() {
	if(JOptionPane.showOptionDialog(tableAggregate, connectionPanel, ConnectTitle,
		   JOptionPane.DEFAULT_OPTION, JOptionPane.INFORMATION_MESSAGE,
                   null, ConnectOptionNames, ConnectOptionNames[0]) == 0) {
	    connect();
            frame.setVisible(true);
	}
	else if(!frame.isVisible())
	    System.exit(0);
    }

    /**
     * Creates the connectionPanel, which will contain all the fields for
     * the connection information.
     */
    public void createConnectionDialog() {
 	// Create the labels and text fields.
	userNameLabel = new JLabel("User name: ", JLabel.RIGHT);
 	userNameField = new JTextField("guest");

	passwordLabel = new JLabel("Password: ", JLabel.RIGHT);
	passwordField = new JTextField("trustworthy");

        serverLabel = new JLabel("Database URL: ", JLabel.RIGHT);
	serverField = new JTextField("jdbc:odbc:mydsn");
        //Where 'mydsn' is the DSN (Data Source Name you have created using the ODBC icon in Windows Control Panel.
	driverLabel = new JLabel("Driver: ", JLabel.RIGHT);
	driverField = new JTextField("sun.jdbc.odbc.JdbcOdbcDriver");


	connectionPanel = new JPanel(false);
	connectionPanel.setLayout(new BoxLayout(connectionPanel,
						BoxLayout.X_AXIS));

	JPanel namePanel = new JPanel(false);
	namePanel.setLayout(new GridLayout(0, 1));
	namePanel.add(userNameLabel);
	namePanel.add(passwordLabel);
	namePanel.add(serverLabel);
	namePanel.add(driverLabel);

	JPanel fieldPanel = new JPanel(false);
	fieldPanel.setLayout(new GridLayout(0, 1));
	fieldPanel.add(userNameField);
	fieldPanel.add(passwordField);
	fieldPanel.add(serverField);
        fieldPanel.add(driverField);

	connectionPanel.add(namePanel);
	connectionPanel.add(fieldPanel);
    }

    public TableExample() {
        mainPanel = new JPanel();

        // Create the panel for the connection information
	createConnectionDialog();

	// Create the buttons.
	showConnectionInfoButton = new JButton("Configuration");
        showConnectionInfoButton.addActionListener(new ActionListener() {
	        public void actionPerformed(ActionEvent e) {
	            activateConnectionDialog();
	        }
	    }
	);

	fetchButton = new JButton("Fetch");
        fetchButton.addActionListener(new ActionListener() {
	        public void actionPerformed(ActionEvent e) {
	            fetch();
	        }
	    }
	);

	// Create the query text area and label.
        queryTextArea = new JTextArea("SELECT * FROM titles", 25, 25);
	queryAggregate = new JScrollPane(queryTextArea);
        queryAggregate.setBorder(new BevelBorder(BevelBorder.LOWERED));

        // Create the table.
        tableAggregate = createTable();
        tableAggregate.setBorder(new BevelBorder(BevelBorder.LOWERED));

	// Add all the components to the main panel.
        mainPanel.add(fetchButton);
        mainPanel.add(showConnectionInfoButton);
        mainPanel.add(queryAggregate);
        mainPanel.add(tableAggregate);
        mainPanel.setLayout(this);

        // Create a Frame and put the main panel in it.
        frame = new JFrame("TableExample");
        frame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {System.exit(0);}});
        frame.setBackground(Color.lightGray);
        frame.getContentPane().add(mainPanel);
        frame.pack();
        frame.setVisible(false);
        frame.setBounds(200, 200, 640, 480);

	activateConnectionDialog();
    }

    public void connect() {
       dataBase = new JDBCAdapter(
            serverField.getText(),
            driverField.getText(),
            userNameField.getText(),
            passwordField.getText());
       sorter.setModel(dataBase);
   }

    public void fetch() {
        dataBase.executeQuery(queryTextArea.getText());
    }

    public JScrollPane createTable() {
        sorter = new TableSorter();

        //connect();
        //fetch();

        // Create the table
        JTable table = new JTable(sorter); 
	// Use a scrollbar, in case there are many columns. 
	table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); 

        // Install a mouse listener in the TableHeader as the sorter UI.
        sorter.addMouseListenerToHeaderInTable(table);

        JScrollPane scrollpane = new JScrollPane(table);

        return scrollpane;
    }

    public static void main(String s[]) {
        new TableExample();
    }

    public Dimension preferredLayoutSize(Container c){return origin;}
    public Dimension minimumLayoutSize(Container c){return origin;}
    public void addLayoutComponent(String s, Component c) {}
    public void removeLayoutComponent(Component c) {}
    public void layoutContainer(Container c) {
        Rectangle b = c.getBounds();
        int topHeight = 90;
        int inset = 4;
        showConnectionInfoButton.setBounds(b.width-2*inset-120, inset, 120, 25);
        fetchButton.setBounds(b.width-2*inset-120, 60, 120, 25);
        // queryLabel.setBounds(10, 10, 100, 25);
        queryAggregate.setBounds(inset, inset, b.width-2*inset - 150, 80);
        tableAggregate.setBounds(new Rectangle(inset,
                                               inset + topHeight,
                                               b.width-2*inset,
                                               b.height-2*inset - topHeight));
    }

}

 Both the 2 files are needed for Compiling & running the program.
 To Compile:
 javac TableExample.java

 To run:
 java TableExample
 
 You must also configure & create a new DSN from the 'ODBC' icon
 in the Control Panel.

See JDBC Tutorial Click here

Also see JDBC 2.0 Fundamentals Tutorial Click here

[nitish_mythology]

I told you skc881
If Jguru is there...prb is solved!
Thank him or Rep him for the solution!

[Vishal Gupta]

Originally Posted by JGuru

Here is the JAVA code for JDBC Connectivity

//JDBCAdapter.java
/*
 * @(#)JDBCAdapter.java	1.16
 */

/**
 * An adaptor, transforming the JDBC interface to the TableModel interface.
 *
 * @version 1.20 
 * @author JGuru
 */

import java.util.Vector;
import java.sql.*;
import javax.swing.table.AbstractTableModel;
import javax.swing.event.TableModelEvent;

public class JDBCAdapter extends AbstractTableModel {
    Connection          connection;
    Statement           statement;
    ResultSet           resultSet;
    String[]            columnNames = {};
    Vector		rows = new Vector();
    ResultSetMetaData   metaData;

    public JDBCAdapter(String url, String driverName,
                       String user, String passwd) {
        try {
            Class.forName(driverName);
            System.out.println("Opening db connection");

            connection = DriverManager.getConnection(url, user, passwd);
            statement = connection.createStatement();
        }
        catch (ClassNotFoundException ex) {
            System.err.println("Cannot find the database driver classes.");
            System.err.println(ex);
        }
        catch (SQLException ex) {
            System.err.println("Cannot connect to this database.");
            System.err.println(ex);
        }
     }

    public void executeQuery(String query) {
        if (connection == null || statement == null) {
            System.err.println("There is no database to execute the query.");
            return;
        }
        try {
            resultSet = statement.executeQuery(query);
            metaData = resultSet.getMetaData();

            int numberOfColumns =  metaData.getColumnCount();
            columnNames = new String[numberOfColumns];
            // Get the column names and cache them.
            // Then we can close the connection.
            for(int column = 0; column < numberOfColumns; column++) {
                columnNames[column] = metaData.getColumnLabel(column+1);
            }

            // Get all rows.
            rows = new Vector();
            while (resultSet.next()) {
                Vector newRow = new Vector();
                for (int i = 1; i <= getColumnCount(); i++) {
	            newRow.addElement(resultSet.getObject(i));
                }
                rows.addElement(newRow);
            }
            //  close(); Need to copy the metaData, bug in jdbc:odbc driver.
            fireTableChanged(null); // Tell the listeners a new table has arrived.
        }
        catch (SQLException ex) {
            System.err.println(ex);
        }
    }

    public void close() throws SQLException {
        System.out.println("Closing db connection");
        resultSet.close();
        statement.close();
        connection.close();
    }

    protected void finalize() throws Throwable {
        close();
        super.finalize();
    }

    //////////////////////////////////////////////////////////////////////////
    //
    //             Implementation of the TableModel Interface
    //
    //////////////////////////////////////////////////////////////////////////

    // MetaData

    public String getColumnName(int column) {
        if (columnNames[column] != null) {
            return columnNames[column];
        } else {
            return "";
        }
    }

    public Class getColumnClass(int column) {
        int type;
        try {
            type = metaData.getColumnType(column+1);
        }
        catch (SQLException e) {
            return super.getColumnClass(column);
        }

        switch(type) {
        case Types.CHAR:
        case Types.VARCHAR:
        case Types.LONGVARCHAR:
            return String.class;

        case Types.BIT:
            return Boolean.class;

        case Types.TINYINT:
        case Types.SMALLINT:
        case Types.INTEGER:
            return Integer.class;

        case Types.BIGINT:
            return Long.class;

        case Types.FLOAT:
        case Types.DOUBLE:
            return Double.class;

        case Types.DATE:
            return java.sql.Date.class;

        default:
            return Object.class;
        }
    }

    public boolean isCellEditable(int row, int column) {
        try {
            return metaData.isWritable(column+1);
        }
        catch (SQLException e) {
            return false;
        }
    }

    public int getColumnCount() {
        return columnNames.length;
    }

    // Data methods

    public int getRowCount() {
        return rows.size();
    }

    public Object getValueAt(int aRow, int aColumn) {
        Vector row = (Vector)rows.elementAt(aRow);
        return row.elementAt(aColumn);
    }

    public String dbRepresentation(int column, Object value) {
        int type;

        if (value == null) {
            return "null";
        }

        try {
            type = metaData.getColumnType(column+1);
        }
        catch (SQLException e) {
            return value.toString();
        }

        switch(type) {
        case Types.INTEGER:
        case Types.DOUBLE:
        case Types.FLOAT:
            return value.toString();
        case Types.BIT:
            return ((Boolean)value).booleanValue() ? "1" : "0";
        case Types.DATE:
            return value.toString(); // This will need some conversion.
        default:
            return "\""+value.toString()+"\"";
        }

    }

    public void setValueAt(Object value, int row, int column) {
        try {
            String tableName = metaData.getTableName(column+1);
            // Some of the drivers seem buggy, tableName should not be null.
            if (tableName == null) {
                System.out.println("Table name returned null.");
            }
            String columnName = getColumnName(column);
            String query =
                "update "+tableName+
                " set "+columnName+" = "+dbRepresentation(column, value)+
                " where ";
            // We don't have a model of the schema so we don't know the
            // primary keys or which columns to lock on. To demonstrate
            // that editing is possible, we'll just lock on everything.
            for(int col = 0; col<getColumnCount(); col++) {
                String colName = getColumnName(col);
                if (colName.equals("")) {
                    continue;
                }
                if (col != 0) {
                    query = query + " and ";
                }
                query = query + colName +" = "+
                    dbRepresentation(col, getValueAt(row, col));
            }
            System.out.println(query);
            System.out.println("Not sending update to database");
            // statement.executeQuery(query);
        }
        catch (SQLException e) {
            //     e.printStackTrace();
            System.err.println("Update failed");
        }
        Vector dataRow = (Vector)rows.elementAt(row);
        dataRow.setElementAt(value, column);

    }
}

 The second file is as follows:
//TableExample.java 
/*
 * @(#)TableExample.java	
 */

/**
 * A a UI around the JDBCAdaptor, allowing database data to be interactively
 * fetched, sorted and displayed using Swing.
 *
 * NOTE: This example uses a modal dialog via the static convenience methods in
 * the JOptionPane. Use of modal dialogs requires JDK 1.1.4 or greater.
 *
 * @version 1.19 
 * @author JGuru
 */

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;
import javax.swing.border.*;

public class TableExample implements LayoutManager {
    static String[] ConnectOptionNames = { "Connect" };
    static String   ConnectTitle = "Connection Information";

    Dimension   origin = new Dimension(0, 0);

    JButton     fetchButton;
    JButton     showConnectionInfoButton;

    JPanel      connectionPanel;
    JFrame      frame; // The query/results window.

    JLabel      userNameLabel;
    JTextField  userNameField;
    JLabel      passwordLabel;
    JTextField  passwordField;
    // JLabel      queryLabel;
    JTextArea   queryTextArea;
    JComponent  queryAggregate;
    JLabel      serverLabel;
    JTextField  serverField;
    JLabel      driverLabel;
    JTextField  driverField;

    JPanel      mainPanel;

    TableSorter sorter;
    JDBCAdapter dataBase;
    JScrollPane tableAggregate;

    /**
     * Brings up a JDialog using JOptionPane containing the connectionPanel.
     * If the user clicks on the 'Connect' button the connection is reset.
     */
    void activateConnectionDialog() {
	if(JOptionPane.showOptionDialog(tableAggregate, connectionPanel, ConnectTitle,
		   JOptionPane.DEFAULT_OPTION, JOptionPane.INFORMATION_MESSAGE,
                   null, ConnectOptionNames, ConnectOptionNames[0]) == 0) {
	    connect();
            frame.setVisible(true);
	}
	else if(!frame.isVisible())
	    System.exit(0);
    }

    /**
     * Creates the connectionPanel, which will contain all the fields for
     * the connection information.
     */
    public void createConnectionDialog() {
 	// Create the labels and text fields.
	userNameLabel = new JLabel("User name: ", JLabel.RIGHT);
 	userNameField = new JTextField("guest");

	passwordLabel = new JLabel("Password: ", JLabel.RIGHT);
	passwordField = new JTextField("trustworthy");

        serverLabel = new JLabel("Database URL: ", JLabel.RIGHT);
	serverField = new JTextField("jdbc:odbc:mydsn");
        //Where 'mydsn' is the DSN (Data Source Name you have created using the ODBC icon in Windows Control Panel.
	driverLabel = new JLabel("Driver: ", JLabel.RIGHT);
	driverField = new JTextField("sun.jdbc.odbc.JdbcOdbcDriver");


	connectionPanel = new JPanel(false);
	connectionPanel.setLayout(new BoxLayout(connectionPanel,
						BoxLayout.X_AXIS));

	JPanel namePanel = new JPanel(false);
	namePanel.setLayout(new GridLayout(0, 1));
	namePanel.add(userNameLabel);
	namePanel.add(passwordLabel);
	namePanel.add(serverLabel);
	namePanel.add(driverLabel);

	JPanel fieldPanel = new JPanel(false);
	fieldPanel.setLayout(new GridLayout(0, 1));
	fieldPanel.add(userNameField);
	fieldPanel.add(passwordField);
	fieldPanel.add(serverField);
        fieldPanel.add(driverField);

	connectionPanel.add(namePanel);
	connectionPanel.add(fieldPanel);
    }

    public TableExample() {
        mainPanel = new JPanel();

        // Create the panel for the connection information
	createConnectionDialog();

	// Create the buttons.
	showConnectionInfoButton = new JButton("Configuration");
        showConnectionInfoButton.addActionListener(new ActionListener() {
	        public void actionPerformed(ActionEvent e) {
	            activateConnectionDialog();
	        }
	    }
	);

	fetchButton = new JButton("Fetch");
        fetchButton.addActionListener(new ActionListener() {
	        public void actionPerformed(ActionEvent e) {
	            fetch();
	        }
	    }
	);

	// Create the query text area and label.
        queryTextArea = new JTextArea("SELECT * FROM titles", 25, 25);
	queryAggregate = new JScrollPane(queryTextArea);
        queryAggregate.setBorder(new BevelBorder(BevelBorder.LOWERED));

        // Create the table.
        tableAggregate = createTable();
        tableAggregate.setBorder(new BevelBorder(BevelBorder.LOWERED));

	// Add all the components to the main panel.
        mainPanel.add(fetchButton);
        mainPanel.add(showConnectionInfoButton);
        mainPanel.add(queryAggregate);
        mainPanel.add(tableAggregate);
        mainPanel.setLayout(this);

        // Create a Frame and put the main panel in it.
        frame = new JFrame("TableExample");
        frame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {System.exit(0);}});
        frame.setBackground(Color.lightGray);
        frame.getContentPane().add(mainPanel);
        frame.pack();
        frame.setVisible(false);
        frame.setBounds(200, 200, 640, 480);

	activateConnectionDialog();
    }

    public void connect() {
       dataBase = new JDBCAdapter(
            serverField.getText(),
            driverField.getText(),
            userNameField.getText(),
            passwordField.getText());
       sorter.setModel(dataBase);
   }

    public void fetch() {
        dataBase.executeQuery(queryTextArea.getText());
    }

    public JScrollPane createTable() {
        sorter = new TableSorter();

        //connect();
        //fetch();

        // Create the table
        JTable table = new JTable(sorter); 
	// Use a scrollbar, in case there are many columns. 
	table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); 

        // Install a mouse listener in the TableHeader as the sorter UI.
        sorter.addMouseListenerToHeaderInTable(table);

        JScrollPane scrollpane = new JScrollPane(table);

        return scrollpane;
    }

    public static void main(String s[]) {
        new TableExample();
    }

    public Dimension preferredLayoutSize(Container c){return origin;}
    public Dimension minimumLayoutSize(Container c){return origin;}
    public void addLayoutComponent(String s, Component c) {}
    public void removeLayoutComponent(Component c) {}
    public void layoutContainer(Container c) {
        Rectangle b = c.getBounds();
        int topHeight = 90;
        int inset = 4;
        showConnectionInfoButton.setBounds(b.width-2*inset-120, inset, 120, 25);
        fetchButton.setBounds(b.width-2*inset-120, 60, 120, 25);
        // queryLabel.setBounds(10, 10, 100, 25);
        queryAggregate.setBounds(inset, inset, b.width-2*inset - 150, 80);
        tableAggregate.setBounds(new Rectangle(inset,
                                               inset + topHeight,
                                               b.width-2*inset,
                                               b.height-2*inset - topHeight));
    }

}

 Both the 2 files are needed for Compiling & running the program.
 To Compile:
 javac TableExample.java

 To run:
 java TableExample
 
 You must also configure & create a new DSN from the 'ODBC' icon
 in the Control Panel.

See JDBC Tutorial Click here

Also see JDBC 2.0 Fundamentals Tutorial Click here

That was really awsome

[JGuru]

That was a simple program to connect to a Database using JDBC in Java.
It displays the table data in a tabular format in JTable.