getMarvelHeroWithCharacter.java

Future <String> marvel = executor.submit(new Callable <String> () {
    public String call() {
        return getMarvelHeroWithCharacter(“C”); // totally not making this up
    }
});

// other very important stuff of course, non-blocking ftw

System.out.println(marvel.get()); // this bit is blocking if the result isn’t ready yet