java 回文串判断

public static void main(String[] args){java.util.Stack<Character> stackchar = new java.util.Stack<Character>();Scanner cin = new Scanner(System.in);char[] reverse = null;reverse = cin.next().toCharArray();if(reverse.length % 2 == 0){for(int i = 0; i < reverse.length; i++){if(stackchar.empty())stackchar.push(reverse[i]);else if(stackchar.peek() == reverse[i]){stackchar.pop();}else{stackchar.push(reverse[i]);}}}else{for(int i = 0; i < reverse.length; i++){if(i == reverse.length / 2)continue;else{if(stackchar.empty())stackchar.push(reverse[i]);else if(stackchar.peek() == reverse[i]){stackchar.pop();}else{stackchar.push(reverse[i]);}}}}if(stackchar.empty())System.out.println("是回文");elseSystem.out.println("不是回文");}}