Java stream reduce

Java/java-stream-reduce/ParallelExample.java

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+import java.time.Instant;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
+
+public class ParallelExample {
+   public static void main(String[] args) {
+       Random random = new Random();
+       final List<Integer> LARGE_LIST = new ArrayList<>(100000000);
+
+       for (int i = 0; i < 100000000; i++)
+           LARGE_LIST.add(random.nextInt(10000));
+
+       Instant startTime = Instant.now();
+       int largestNumber = LARGE_LIST.stream().reduce(0, (result, current) -> result > current ? result : current);
+       long totalTime = Duration.between(startTime,Instant.now()).toMillis();
+
+       Instant parallelStartTime = Instant.now();
+       int largestNumberParallel = LARGE_LIST.parallelStream().reduce(0, (result, current) -> result > current ? result : current, Integer::max);
+       long totalTimeParallel = Duration.between(parallelStartTime,Instant.now()).toMillis();
+       System.out.println("Largest number sequential : " + largestNumber + " time : " + totalTime);
+       System.out.println("Largest number parallel : " + largestNumberParallel + " time : " + totalTimeParallel);
+   }
+}