用 java 语言获取 1--N 的不重复随机数

import java.util.ArrayList;

import java.util.List;

import java.util.Random;



public class H {

    public static void main(String args[]) {

        int N = 10;

        List<Integer> list = new ArrayList<Integer>();

        for (int i = 0; i < N; i++) {

            list.add(i + 1);

        }

        int count = N;

        int items[] = new int[N];

        for (int i = 0; i < N; i++) {

            // 

            int randomInt = new Random().nextInt(count);

            items[i] = list.get(randomInt);

            list.remove(randomInt);

            count--;

            System.out.println(items[i]);

        }

    }

}