请教有关数组的问题

class Derived {
    public static void main(String[] args) {
        int[] seeds = {1,2,3,4,6,8};
        int n = seeds.length;
        for (int i = 0; i < 3; i++) {
            for (int k = 0; k < n-1; k++) {
                seeds[k] = seeds[k+1];    
            }
        }
        for (int i = 0; i < n - 1; i++) {
            System.out.print("/t"+seeds[i]);
        }
    }
}

求告知两个嵌套的for循环打印出来的数组为什么会是：
23468
34688
46888