static boolean isAnagram(String a, String b) {
    // Complete the function
    if (a.length()!=b.length()) return false;
    a = a.toLowerCase();
    b = b.toLowerCase();
    int[] s = new int[200];
    char[] a1 = a.toCharArray();
    char[] b1 = b.toCharArray();
    for (int i=0; i<a.length(); i++)
    {
        s[(int)a1[i]]++;
    }
    for (int i=0; i<b.length(); i++)
    {
        s[(int)b1[i]]--;
    }
    for (int num : s){
        if (num!=0) return false;
    }
    return true;
}