Write a menu driven program in java to display the records of Doctor (Dno,Dname,sal) from the database & display it on the screen (use JTable).

import java.awt.*;

import javax.swing.*;

import java.sql.*;

class docjtable extends JFrame

   {

                private  JPanel                   topPanel;

                private  JTable                   table;

                private  JScrollPane scrollPane;

                docjtable()throws Exception

                   {

                                setTitle( "JTable Application" );

                                setSize( 300, 200 );

                                setBackground( Color.gray );

                                topPanel = new JPanel();

                                topPanel.setLayout( new BorderLayout() );

                                getContentPane().add( topPanel );

                                Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

                                Connection con = DriverManager.getConnection("jdbc:odbc:dbAccess","my","asa");

        Statement stmt=con.createStatement();

                                ResultSet rs = stmt.executeQuery("Select count(*) from doctor");

                                rs.next();

                                int rows = rs.getInt(1);

        rs=stmt.executeQuery("select * from doctor");

        ResultSetMetaData rsmd = rs.getMetaData();

        int cols = rsmd.getColumnCount();

        String colNames[] = new String[cols];

        for(int i=1;i<=cols;i++)

           colNames[i-1] = rsmd.getColumnName(i);

                    Object[][] data= new Object[rows][cols];

                    int i=0,j;

                    while(rs.next())

                    {

                      for(j=1;j<=cols;j++)

                         data[i][j-1] = rs.getString(j);

                       i++;

                    }

                    table=new JTable(data,colNames);

                    scrollPane = new JScrollPane( table );

                                topPanel.add( scrollPane, BorderLayout.CENTER );

       }

       public static void main(String ar[])throws Exception

       {

                      docjtable dj=new docjtable();

                      dj.setVisible(true);

                   }

    }