Return true iff the two given strings have the same character frequencies.

Anagrams.java

static boolean isAnagram(String a, String b) {
    if(a.length() != b.length()) return false;
    return Arrays.equals(getCount(a.toLowerCase()), getCount(b.toLowerCase()));
}

static int[] getCount(String str) {
    int[] count = new int[26];                
    str.chars().forEach(ch -> count[ch-'a']++);
    return count;
}