This intermediate operation returns an equivalent stream that is parallel. It may return itself, either because the stream was already parallel, or because the underlying stream state was modified to be parallel.
package com.logicbig.example.intstream;
import java.util.stream.IntStream;
public class ParallelExample {
public static void main(String... args) {
System.out.println("-- parallel -- ");
IntStream intStream = IntStream.range(1, 5);
intStream.parallel()
.forEach(System.out::println);
System.out.println("-- sequential -- ");
intStream = IntStream.range(1, 5);
intStream.sequential()
.forEach(System.out::println);
}
}
Output
-- parallel --
3
4
2
1
-- sequential --
1
2
3
4
