[somsahi]

1)got servlet code
from bookstore and copied it to eclipse+myeclipse.original code is like this

import java.io.*;
import java.util.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;………
after copying two warning is coming one import java.util.*; is never used so i do organise import and code is now converted to

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
2)even after this one more warning is that serilizable class bannerservlet does not declare a stati final serialVersionUID
so problem is i am not getting thses two concepts and what to
thanxs in advance

[Scott Anderson]

Basically, they’re both correct warnings. You’ll be warned when you don’t use imports that you include, so organizing them got rid of the import and thus addressed the warning. And, if you implement java.io.Serializable, it is recommneded that you declare a serialVersionUID for forward compatibility. Please see the javadoc for Serializable for a description.

However, both are warnings and you can continue on and safely ignore them for your purposes.

[Riyad Kalla]

Moving to OT > Soft Dev, for the 4th time.

[Author]

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