ThreadLocalRandom Example

Java Java 8 Streams Java Concurrency 

For concurrent access, using ThreadLocalRandom instead of Math.random() results in less contention and, ultimately, better performance.

This class was introduced in JDK 1.7

Examples

int i = ThreadLocalRandom.current()
                          .nextInt(100, 1000);

Using streams

IntStream ints = ThreadLocalRandom.current()
                                   .ints(100, 1000)
                                   .limit(1000)
                                   .forEach(System.out::println);