python和java生成随即序列

public static int[] random_serial(int limit) {
		int[] result = new int[limit];
		for (int i = 0; i < limit; i++)
			result[i] = i + 1;//这里可以调整
		int w;
		Random rand = new Random();
		for (int i = limit - 1; i > 0; i--) {
			w = rand.nextInt(i);
			int t = result[i];
			result[i] = result[w];
			result[w] = t;
		}
		return result;
	}

import random
serial = [1, 2, 3, 4]
random.shuffle(serial)