java - 随机数1-10，不重复。为什么这段代码不起作用。它编译但仍然重复

Question

此代码重复数字，并且使用我编写的 if 语句我认为不应该这样做

class RandomNumber {

    public static void main(String[] args) {

    int y = 0;
    int z = 0;
    int[] q = new int[10];

    while(y != q.length) {
        int x = (int) (Math.random() * 10);

            if (x != q[0] || x != q[1] || x != q[2] || x != q[3] || x != q[4] || x != q[5]
            || x != q[6] || x != q[7] || x != q[8] || x != q[9]) {
                q[z] = x;
                System.out.println(q[z]);   // or you could print x it doesn't matter
                y++;                        // I just chose this one to make sure each
                z++;                        // q[] was getting set to a value

            }
        }
    }
}

Answer 1

List<Integer> list = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
Collections.shuffle(list);

问题已解决。而且效率也更高。