【有效的字母异位词(242-java)】

有效的字母异位词(242-java)

public class LC85_242_isAnagram {
    //hash表
    public static boolean isAnagram(String s, String t) {
        int len1 = s.length();
        int len2 = t.length();
        if (len1 != len2) {
            return false;
        }
        int[] record = new int[26];
        for (char c : s.toCharArray()) {
            record[c - 'a'] += 1;
        }
        for (char c : t.toCharArray()) {
            record[c - 'a'] -= 1;
        }
        for (int i : record) {
            if (i != 0) {
                return false;
            }
        }
        return true;
    }
    
    //api判断
    public boolean isAnagram111(String s, String t) {
        if (s.length() != t.length()) {
            return false;
        }
        char[] str1 = s.toCharArray();
        char[] str2 = t.toCharArray();
        Arrays.sort(str1);
        Arrays.sort(str2);
        return Arrays.equals(str1, str2);
    }

    public static void main(String[] args) {
        String s = "anagram", t = "nagaram";
        System.out.println(isAnagram(s, t));
    }
}