题解 | #回文数判断#

import java.util.Scanner;
import java.util.ArrayDeque;

public class Main {
    public static void main(String[] args) {
        ArrayDeque<String> deque = new ArrayDeque<>();
        Scanner scanner = new Scanner(System.in);
        boolean flag = true;
        int number = scanner.nextInt();
        int number2 = number;
        int bit = 0;
        if (number == 0) {
            bit = bit + 1;
        }
        else {
            while (number > 0) {
                number = number / 10;
                bit = bit + 1;
            }
        }
        char[] arr =new char[bit] ;
        for(int j=0;j<bit;j++){
            String h1 = number2%10+"";
            number2 = number2/10;
            arr[j] = h1.charAt(0);
        }
        for(int i=0;i<bit;i++) {
            String h = ""+arr[i];
            deque.offerLast(h);
        }
        while(deque.size()!=1){
            flag= deque.getFirst().equals(deque.getLast());
            deque.removeFirst();
            deque.removeLast();
        }
        System.out.println(flag);
    }
}