Hello.java

public class Hello {
  public static void main(String... args){
    if(java.util.Arrays.stream("H,e,l,l,o, W,o,r,l,d,!".split(",")).peek(System.out::print).count() == 0){}
  }
}

Hello World!

もしかしてStream.ofでいいんちゃうか

public class Hello {
    public static void main(String... args){
        if(java.util.stream.Stream.of("Hello World!").peek(System.out::print).count() == 0){}
    }
}

畜生

public class Hello {
    public static void main(String... args){
        if(System.out.printf("Hello World!" + System.lineSeparator()) != null){}
    }
}