双色球

双色球代码案例：

需求：

import java.util.Random;
import java.util.Scanner;

public class TwoColorBall {
    public static void main(String[] args) {
        //1.生成中奖号码
        int[] generate = generate();
        for (int i = 0; i < generate.length; i++) {
            System.out.print(generate[i] + " ");
        }
        //2.用户选择的号码
        int[] user = chooseNumber();
        for (int i1 = 0; i1 < user.length; i1++) {
            System.out.print(user[i1] + " ");
        }

        //判断用户是否中奖
        int redClount = 0;
        int blueClount = 0;
        //判断红球中奖个数
        for (int i = 0; i < user.length - 1; i++) {
            int redNumber = user[i];
            for (int j = 0; j < generate.length; j++) {
                if (generate[j] == redNumber) {
                    redClount++;
                    break;
                }
            }
        }

        //判断篮球中奖个数
        int blueNumber = user[user.length - 1];
        if (blueNumber == generate[generate.length - 1]) {
            blueClount++;
        }
        System.out.println("红球中奖个数为：" + redClount);
        System.out.println("蓝球中奖个数为：" + blueClount);

        if (redClount == 6 && blueClount == 1) {
            System.out.println("恭喜您中奖1000万！");
        } else if (redClount == 6 && blueClount == 0) {
            System.out.println("恭喜您中奖500万！");
        } else if (redClount == 5 && blueClount == 1) {
            System.out.println("恭喜您中奖3000元！");
        } else if ((redClount == 5 && blueClount == 0) || (redClount == 4 && blueClount == 1)) {
            System.out.println("恭喜您中奖200元！");
        } else if ((redClount == 4 && blueClount == 0) || (redClount == 3 && blueClount == 1)) {
            System.out.println("恭喜您中奖10元！");
        } else if ((redClount == 2 && blueClount == 1) || (redClount == 1 && blueClount == 1) || (redClount == 0 && blueClount == 1)) {
            System.out.println("恭喜您中奖5元！");
        } else {
            System.out.println("感谢您为中国体彩做出的贡献！");
        }

    }

    //1.生成中奖号码
    public static int[] generate() {
        int arr[] = new int[7];

        Random random = new Random();
        for (int i = 0; i < 6; ) {
            int redNumber = random.nextInt(33) + 1;
            boolean falg = isExist(arr, redNumber);
            if (!falg) {
                arr[i] = redNumber;
                i++;
            }
        }
        int blueNumber = random.nextInt(16) + 1;
        arr[arr.length - 1] = blueNumber;
        return arr;
    }

    //2.用户选择号码
    public static int[] chooseNumber() {
        int[] user = new int[7];
        Scanner scanner = new Scanner(System.in);
        for (int i = 0; i < 6; ) {
            System.out.println("请输入红色球第" + (i + 1) + "个号码");
            int number = scanner.nextInt();
            if (number >= 1 && number <= 31) {
                boolean falg = isExist(user, number);
                if (!falg) {
                    user[i] = number;
                    i++;
                }
            } else {
                System.out.println("输入的号码有误");
            }
        }

        while (true) {
            System.out.println("请输入蓝色球号码");
            int buleNumber = scanner.nextInt();
            if (buleNumber >= 1 && buleNumber <= 16) {
                user[user.length - 1] = buleNumber;
                break;
            } else {
                System.out.println("蓝色球号码超出范围");
            }
        }
        return user;
    }

    //判断一个数是否在一个数组中存在
    public static boolean isExist(int[] arr, int number) {
        for (int i = 0; i < arr.length; i++) {
            if (arr[i] == number) {
                return true;
            }
        }
        return false;
    }
}