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How to Generate Unique ID in Java (Integer)?

Tags:

java

uniqueidentifier

uid

How to generate unique ID that is integer in java that not guess next number?

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Sajad Bahmani Avatar asked Sep 06 '25 12:09

Sajad Bahmani

1 Answers

How unique does it need to be?

If it's only unique within a process, then you can use an AtomicInteger and call incrementAndGet() each time you need a new value.

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Simon Nickerson Avatar answered Sep 08 '25 08:09

Simon Nickerson
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