This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
in the above code constant is not resolving, which class do i have to import for this,
and one more thing rather then setting user session attributes in this way can i set it in this way session.setAttribute("username", uid);