语句练习题3

 1         int gw,sw,bw,qw,ww;
 2         Scanner sc=new Scanner(System.in);
 3         System.out.println("请输入一个5位数：");
 4         int num=sc.nextInt();
 5         if(num>=10000&&num<=99999){
 6             gw=num%10;
 7             sw=num/10%10;
 8             bw=num/100%10;
 9             qw=num/1000%10;
10             ww=num/10000;
11             if(gw==ww&&sw==qw){
12                 System.out.println(num+"是回文数。");
13             }else{
14                 System.out.println(num+"不是回文数。");
15             }
16         }else{
17             System.out.println("你输入有误，请重新输入!");
18         }