每天一道leetcode-125验证回文串

class Solution {
    public boolean isPalindrome(String s) {
        s = s.toLowerCase();
        char [] charArray = s.toCharArray();
        String temp = "";
        for(int i=;i<charArray.length;i++)
        {
            if( ((int)charArray[i] >=  && (int)charArray[i] <= ) || ((int)charArray[i] >=  && (int)charArray[i] <= ))
            {
                temp += charArray[i];
            }
        }
        char [] resultArray = temp.toCharArray();
        int begin = ;int end = resultArray.length - ;
        while(begin < end)
        {
            if(resultArray[begin] == resultArray[end])
            {
                begin++;
                end--;
            }else{
                return false;
            }
        }
        return true;
     }
}