java streams
package com.mkyong.java8; import java.util.stream.IntStream; public class ParallelExample3a { public static void main(String[] args) { System.out.println("Normal..."); IntStream range = IntStream.rangeClosed(1, 10); System.out.println(range.isParallel()); // false range.forEach(System.out::println); System.out.println("Parallel..."); IntStream range2 = IntStream.rangeClosed(1, 10); IntStream range2Parallel = range2.parallel(); System.out.println(range2Parallel.isParallel()); // true range2Parallel.forEach(System.out::println); } }