Java 8 Lambda test

LambdaTest.java

import java.util.List;
import java.util.ArrayList;
import java.util.stream.Stream;
import java.util.stream.Collectors;

public class LambdaTest {
  public static void main(String[] args) {
    ArrayList<Integer> xsList = new ArrayList<Integer>();

    for (Integer i = 0; i < 10; i++) {
      xsList.add(i);
    }

    Stream<Integer> xsParallelStream = xsList.stream().parallel();

    List<Integer> ys = xsParallelStream.map( (Integer i) -> i * 2 ).collect(Collectors.toList());

    for (Integer y: ys) {
      System.out.println(y);
    }
  }
}