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there are many ways of doing it, in my opinion following is the best (orderwise)<br />
* use sequences in database<br />
OR<br />
* may be use like String id = &nbsp;new Long(System.currentTimeMil<wbr />lis()).toS<wbr />tring()<br />

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there are many ways of doing it, in my opinion following is the best (orderwise)
* use sequences in database
OR
* may be use like String id =  new Long(System.currentTimeMillis()).toString()


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second option can be better replaced with the following<br />
<a href="http://www.rgagnon.com/javadetails/java-0385.html" rel="ugc">http://www.rgagnon.com/javadetails/java-0385.html</a>
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second option can be better replaced with the following
http://www.rgagnon.com/javadetails/java-0385.html [http://www.rgagnon.com/javadetails/java-0385.html]

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How are you going to use the id ? &nbsp;Are you naming a file ? If yes, maybe <br />
<a href="https://www.experts-exchange.com/questions/21833607/Using-createTempFile-method.html" rel="ugc">https://www.experts-exchange.com/questions/21833607/Using-createTempFile-method.html</a>&nbsp; <br />
will help you. &nbsp;You could &nbsp;just use System.currentTimeMillis()<wbr /> as discussed at the link or you could generate a random number and it would probably be unique every time. &nbsp; &nbsp; rrz
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How are you going to use the id ?  Are you naming a file ? If yes, maybe
https://www.experts-exchange.com/questions/21833607/Using-createTempFile-method.html [https://www.experts-exchange.com/questions/21833607/Using-createTempFile-method.html] 
will help you.  You could  just use System.currentTimeMillis() as discussed at the link or you could generate a random number and it would probably be unique every time.     rrz

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sorry fargo I didn't see your posts. &nbsp;
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But there is possibility to create two same id's with millisecond, isn't there?
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But there is possibility to create two same id's with millisecond, isn't there?

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u need to make it synchronised then. I mean have a method which returns unique id and make it synchronised.
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u need to make it synchronised then. I mean have a method which returns unique id and make it synchronised.

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What do you mean? Can you please give me the code to do that?
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What do you mean? Can you please give me the code to do that?

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Hi<br />
<br />
How can I generate unique id?<br />
<br />
Thanks
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Hi

How can I generate unique id?

Thanks

Generate unique id

JavaServer Pages (JSP) allow the development of dynamically generated web pages. It uses the Java programming language; JSP pages are translated into servlets at runtime, with each servlet being cached and reused until the JSP is modified. JSP allows Java code to be interleaved with static web markup content, so the resulting page can be compiled and executed on the server to deliver the content.