Create two random number generators with the same seed : Random « Development « Java Tutorial

import java.util.Random;

public class Main {
  public static void main(String[] argv) throws Exception {
    Random rand = new Random();
    long seed = rand.nextLong();
    rand = new Random(seed);
    Random rand2 = new Random(seed);

6.37.1.Generating Random integer Numbers
6.37.2.Roll a six-sided die 6000 times
6.37.3.Random integers that range from from 0 to n
6.37.4.Random bytes
6.37.5.Random boolean
6.37.6.Random long type number
6.37.7.Random float type number
6.37.8.Random double type number
6.37.9.Create two random number generators with the same seed
6.37.10.Random number between 0 AND 10
6.37.11.Random numbers between 0.0 and 1.0
6.37.12.Random.nextInt(n) returns a distributed int value between 0 (inclusive) and n (exclusive).
6.37.13.Generate a random array of numbers
6.37.14.Random Gaussian values.
6.37.15.Operations for random Strings