随机数不随机

public class TestRandom {
    public static void main(String[] args){
        Random random = new Random(441287210);
        for(int i=0;i<10;i++)
            System.out.print(random.nextInt(10)+" ");

        System.out.println("");

        Random random2 = new Random(-6732303926L);
        for(int i=0;i<10;i++)
            System.out.print(random2.nextInt(10)+" ");

        System.out.println("");


        System.out.println(randomString(-229985452)+' '+randomString(-147909649));

    }


    public static String randomString(int seed) {
        Random rand = new Random(seed);
        StringBuilder sb = new StringBuilder();
        for(int i=0;;i++) {
            int n = rand.nextInt(27);
            if (n == 0) break;
            sb.append((char) ('`' + n));
        }
        return sb.toString();
    }

}

输出：

1 1 1 1 1 1 1 1 1 1
0 1 2 3 4 5 6 7 8 9
hello world