双色球号码生成器 - 免费在线生成随机号码

import java.util.ArrayList; import java.util.Collections; import java.util.Iterator; import java.util.List; import java.util.Random; import java.util.Scanner;

public class DoubleColorBallGenerator { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println('请输入购买的双色球注数：'); int n = sc.nextInt(); for (int i = 1; i <= n; i++) { List redBalls = generateRedBalls(); int blueBall = generateBlueBall(); System.out.println('第' + i + '注双色球号码为：' + redBalls + ' + ' + blueBall); } sc.close(); }

// 生成6个红球
private static List<Integer> generateRedBalls() {
    List<Integer> redBalls = new ArrayList<>();
    Random random = new Random();
    while (redBalls.size() < 6) {
        int ball = random.nextInt(33) + 1;
        if (!redBalls.contains(ball)) {
            redBalls.add(ball);
        }
    }
    Collections.sort(redBalls);
    Iterator<Integer> it = redBalls.iterator();
    while (it.hasNext()) {
        System.out.print(it.next() + ' ');
    }
    System.out.println();
    return redBalls;
}

// 生成1个蓝球
private static int generateBlueBall() {
    Random random = new Random();
    int blueBall = random.nextInt(16) + 1;
    System.out.println('蓝球号码为：' + blueBall);
    return blueBall;
}

}