Unique Id's in java

Question

Possible Duplicate:
Generate UUID in Java
Create a GUID in Java

I am using below snippet for generating unique id's

String id = Long.toString(System.nanoTime());

Problem is it generates same id till 1 min.

Is there any other way to generate unique id's?

You're saying your JRE's `nanoTime` implementation generates the same value for an entire minute?! Is your `currentTimeMillis` equally broken? Still voting to close, but that's pretty messed up. — Dave Newton, Jun 21 '12 at 13:15

score 5 · Answer 1 · answered Jun 21 '12 at 13:12

5

There is a UUID class on the java.util package.

String id = UUID.randomUUID().toString();

Hope this helps.

answered Jun 21 '12 at 13:12

score 2 · Answer 2 · answered Jun 21 '12 at 13:13

2

UUID.randomUUID()

answered Jun 21 '12 at 13:13

Frank

2 Answers2