How can I generate a random 15 digit-long in java [duplicate]

Question

Possible Duplicate:
Java random number with given length

I have been trying to generate a 15 digit long number in java but it seems I have failed to do it so far as using:

This is producing a maximum of 10 digits.

  Random random = new Random();
  int rand15Digt = random.nextInt(15);

How can I generate it successfully?

Answer 1

Use Random's method public long nextLong()