Consecutive Characters

给一个字符串, 返回最长连续的字符的长度.

class Solution {
    public int maxPower(String s) {
        int max = 1;
        int n = s.length();
        int cur = 1;
        if(n == 0)
            return 0;
        else if(n == 1)
            return 1;
        for(int i = 1; i < n; i++){
            if(s.charAt(i) == s.charAt(i-1)){
                cur++;
                max = Math.max(max, cur);
            }
            else{
                cur = 1;
            }
        }
        return max;
    }
}