编辑代码

package rj2201;

public class 回文数 {
    public static void main(String[] args) {
        int x = 1001;
        int j = 0;
        while (x < 10000) {
            int qw = x / 1000;
            int bw = x / 100 % 10;
            int sw = x / 10 % 10;
            int gw = x % 10;
            if (qw == gw && bw == sw) {
                System.out.println(x + "是一个四位数的回文数");
                j++;
            }
            x++;
        }
        System.out.println("四个整数里一共有"+j+"个回文数");
    }
}