/** First prints "one dish", then "two dish" */
public final void printRxJavaStuff() {
  Observable.from(Arrays.asList("one fish", "two fish", "red fish", "blue fish"))
  .filter(new Func1<String, Boolean>() {
      @Override
      public Boolean call(String s) {
          return s.contains("one") || s.contains("two");
      }
  })
  .map(new Func1<String, String>() {
      @Override
      public String call(String s) {
          return s.replace("fish", "dish");
      }
      })
  .subscribe(new Action1<String>() {
      @Override
      public void call(String s) {
          Timber.v(s);
      }
  });
}