1 、问题

孪生素数

public class TwinPrime {
    public boolean method(int n) {
        for (int x = 2; x < n; x++) {
            if (n % x == 0) {
                return false;
            }

        }
        return true;

    }

    public static void main(String[] args) {
        TwinPrime t = new TwinPrime();
        for (int n = 2; n < 1000; n++) {
            if (t.method(n) == true && t.method(n + 2) == true) {
                System.out.println(n + "和" + (n + 2));
            }
        }

    }

}

2、吐槽

菜是原罪