while compiling code java:32: error: illegal start of expression

package com.ds;

import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


public class dbsrv  extends HttpServlet
{
    public void doGet(HttpServletRequest req,HttpServletResponse res)
        throws ServletExcepton,IOException
    {
        Connection con;
        PreparedStatement ps;

        public void init()
        {
            try
            {
                //registry jdbc drivers
                Class.forName("oracle.jdbc.driver.OracleDriver");

                // Establish The Connection
                con = DriverManager.getConnection(
                            "jdbc:oracle:thin:@localhost:1521:xe","system","system");

                //create jdbc prepaedstatement
                ps = con.PreparedStatement("
                select 
                    empno, ename,job,sal, 
                from 
                    emp wher empno=?
                ");
            }
            catch (Exception e)
            {
                e.printStackTrace();
            }
        }//init

        public void doGet(HttpServletRequest req,HttpServletResponse res)
            throws ServletException,IOException
        {
            try
            {
                //general setting 
                PrintWriter pw = res.getWriter();
                res.getContentType("text/html");

                //read form data
                int no = Integer.ParseInt(req.getParameter("teno"));

                //set param value to sql query
                ps.setInt(1,no);

                //execute the sql query
                ResultSet rs=ps.ExecuteQuery();
                
                //process the result set
                if(rs.next())
                {
                    pw.println("<br>Employee no"+rs.getInt(1));
                    pw.println("<br>Employee Nmae"+rs.getString(2));
                    pw.println("<br>Employee desg"+rs.getString(3));
                    pw.println("<br>Employee Salary"+rs.getString(4));
                }//if
                else
                {
                    pw.println("<br>NO Employee found");
                }
            }//try
            catch(Exception e)
            {
                e.printStackTrace();
            }
        }//doGet

        public void doPost(HttpServletRequest req,HttpServletResponse res)
            throws ServletExcepton,IOException
        {
            doGet(req,res);
        }//dopost

        public void destroy()
        {
            //close jdbc objs
            try
            {
                if (ps != null)
                    ps.close();
            }//try
            catch(Exception e)
            {
                e.printStackTrace();
            }

            try
            {
                if (con != null)
                    con.close();
            }//try
            catch(Exception e)
            {
                e.printStackTrace();
            }
        }//destroy()
    }
}//class