to get infornation about the topic"Inter net banking java source code"refer the page link bellow
import java.io.*;
import javax.servlet.*;
import java.sql.*;
import javax.servlet.http.*;

public class Client extends HttpServlet
{
Connection con;
String s3="",s4="";

public void init(ServletConfig sc)throws ServletException
{
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con=DriverManager.getConnection("jdbc:odbc:aravind","scott","tiger");
}catch(Exception ee){System.out.println(ee);}
}

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

String s1=req.getParameter("user");
String s2=req.getParameter("pwd");
try{
Statement st=con.createStatement();
ResultSet rs=st.executeQuery("select name from pass where name=' "+s1+" ' ");

while(rs.next())
{
s3=rs.getString(1);
s4=rs.getString(2);
}


if(s1.equals("")||s2.equals(""))
{
pw.println("invalid");

res.sendRedirect("http://localhost:8080p/tball.gif");
}
else
{
PreparedStatement pst=con.prepareStatement("insert into pass values(?,?)" );
pst.setString(1,s1);
pst.setString(2,s2);
pst.execute();
res.sendRedirect("http://localhost:8080/welcome.html");
}
}catch(Exception e){res.sendRedirect("http://localhost:8080/invalid.html");}
}
}

Reference: http://studentbank.in/report-inter-net-b...z1cc2trzN4