用java打印1000以内的回文素数

以下是Java代码实现：

public class PalindromePrime {
    public static void main(String[] args) {
        for (int i = 2; i <= 1000; i++) {
            if (isPrime(i) && isPalindrome(i)) {
                System.out.println(i);
            }
        }
    }

    private static boolean isPrime(int num) {
        if (num <= 1) {
            return false;
        }
        for (int i = 2; i <= Math.sqrt(num); i++) {
            if (num % i == 0) {
                return false;
            }
        }
        return true;
    }

    private static boolean isPalindrome(int num) {
        int temp = num;
        int reverse = 0;
        while (temp > 0) {
            reverse = reverse * 10 + temp % 10;
            temp /= 10;
        }
        return num == reverse;
    }
}