Java模拟双色球的产生过程

 import java.util.ArrayList;import java.util.List;import java.util.Random;/** * 实现随机抽取，例如35选7等 * * @author Administrator * */public class RandomSelect { public static int[] randomSelect(int total, int number) { int[] result = new int[number]; List list = new ArrayList(); Random r = new Random(); for (int i = 0; i < total; i++) { list.add(i + 1 + ""); } for (int j = 0; j < number; j++) { int size = list.size(); String s = list.get(r.nextInt(size)); result[j] = Integer.parseInt(s); list.remove(s); } return result; } public static void main(String[] args) { int[] red = randomSelect(33, 6); int[] blue = randomSelect(16, 1); System.out.println("红球是："); for (int i = 0; i < red.length; i++) { System.out.print(red[i] + "\t"); } System.out.println("\n蓝球是："); for (int i = 0; i < blue.length; i++) { System.out.println(blue[i] + "\t"); } }}