力扣：290. 单词规律

import java.util.HashMap;
import java.util.Map;


public class Solution {
    public static void main(String[] args) {
        Solution solution = new Solution();
        // String pattern = "abba", str = "dog cat cat fish";
        String pattern = "abba", str = "dog cat cat dog";
        System.out.println(solution.wordPattern(pattern, str));
    }

    public boolean wordPattern(String pattern, String s) {
        String[] arr = new String[26];
        Map map = new HashMap<>();
        String[] split = s.split("\s+");
        if (split.length != pattern.length()){
            return false;
        }
        for (int i = 0; i < split.length; i++){
            int index = pattern.charAt(i) - 'a';
            if (arr[index] == null && !map.containsKey(split[i])){
                arr[index] = split[i];
                map.put(split[i], pattern.charAt(i));
                continue;
            }
            if (arr[index] == null || !arr[index].equals(split[i]) || !map.get(split[i]).equals(pattern.charAt(i))){
                return false;
            }
        }
        return true;
    }
}