Checking if two strings are permutations of each other

Question

How to determine if two strings are permutations of each other

Answer 1

The obligatory Guava one-liner:

boolean isAnagram(String s1, String s2) {
    return ImmutableMultiset.copyOf(Chars.asList(s1.toCharArray())).equals(ImmutableMultiset.copyOf(Chars.asList(s2.toCharArray())));
}

(Just for fun. I don't recommend submitting this for your assignment.)