hi,

im a developer involved in developing a application called security request system in this app i need to generate a no like sda123 as a token for user who made a security request n also i want to increment it each time when a user made a request pls help me regarding this as soon as possible.

If user is already having a session with server, this is as simple as session.setAttribute("SecurityReqNo",sda123);(Inca se of Http)

If there is any other object that tracks user's transaction with server, you can store it there.

PS: Your problem seems too generic to give a clear response, If you could explain the context in a more descriptive manner, that would help in giving more apt response.