12 Digit unique random number generation in Java
<p>i was working on an application where we need to generate some unique number and practically there was no predefined restrictions so was using java UUD generator and was working fine.
Now we are given a new requirements to generate 12 digits unique random number.</p>

<p>Can any one point me some good way/algorithm to achieve this as i can not see any possibility in the UUID generated number.</p>

<p>Thanks in advance</p>
