leetcode125.验证回文串
class Solution {public boolean isPalindrome(String s) {s = s.replaceAll("[^a-zA-Z0-9]", "").toLowerCase();for(int i=0,j=s.length()-1;i<j;i++,j--){if(s.charAt(i)!=s.charAt(j))return false;}return true;}
}
class Solution {public boolean isPalindrome(String s) {s = s.replaceAll("[^a-zA-Z0-9]", "").toLowerCase();for(int i=0,j=s.length()-1;i<j;i++,j--){if(s.charAt(i)!=s.charAt(j))return false;}return true;}
}