joining strings in java 8

Joiner.java

import java.util.*;

public class Joiner {

  public static void main(String[] args) {

    System.out.println(String.join("\n", Arrays.asList(args)));

    System.out.println(String.join("\n", testArgs()));
  }

  private static List<String> testArgs() {
    return Arrays.asList("java 8", "in", "the", "house");
  }

}