【java】判断一个数是否为回文素数

public class pra2 {public static void main(String[] args){int s = 1;int num = 2;boolean isprime = true;while(s<100){isprime = true;for(int j = 2;j<=num/2;j++){if(num%j==0){   isprime = false;   break;}}if(isprime == true&&hwss(num)==true){   System.out.print(" "+num);   s++;}num ++;}}public static boolean hwss(int n){int w = 0;        int []s = new int[10];if(n<10)return true;else{while(n>0){s[w] = n%10;n /= 10;w++;}for(int j = 0;j<w;j++){if(s[j]!=s[w-1-j])return false;}return true;}}   }