Day-1 Detect Capital

class Solution {
    public boolean detectCapitalUse(String word) {
        int caps = 0;
        for (int i = 0; i < word.length(); i++) {
            if (Character.isUpperCase(word.charAt(i))){
                caps++;
            }
        }
        if (caps == word.length() || caps == 0) return true;
        return caps == 1 && Character.isUpperCase(word.charAt(0));
    }
}

class Solution {
    public boolean detectCapitalUse(String word) {
        return word.matches("[A-Z]*|.[a-z]*");
    }
}