回文字符串判断

public class Demo {

  // 判断是否为回文字符串
  public static boolean isPalindrome(String content) {
    int start=0;
    int end=content.length();
    while(end>start){
      if(content.charAt(end)!=content.charAt(start)){
        return false;
      }
      end--;
      start++;
    }
    return true;
  }

  public static void main(String[] args) {
    System.out.println(isPalindrome("洞帘水挂水帘洞"));
    System.out.println(isPalindrome("上海自来水来自海上"));
    System.out.println(isPalindrome("maddam"));
    System.out.println(isPalindrome("m"));
    System.out.println(isPalindrome("maxcam"));
  }
}