案例 双色球

package com.lzk.test;


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

public  class test {
    public static void main(String[] args) {
        int[] numbers = useSelectNumber();
        printNumber(numbers);
        int[] luckyNumbers = luckyNumber();
        printNumber(luckyNumbers);
        compareNumber(numbers, luckyNumbers);


    }

    //设计一个方法，记录用户存放的数字，前六个是红球，最后一个shi是蓝球，返回一个数组
    public static int[] useSelectNumber() {
        int[] numbers = new int[7];
        Scanner scanner = new Scanner(System.in);

            for (int i = 0; i < numbers.length - 1; i++) {
                while (true) {
                    System.out.println("请输入第" + (i + 1) + "个红球：");
                    int num = scanner.nextInt();
                    //1~33
                    if (num < 1 || num > 33) {
                        System.out.println("输入有误，请重新输入！");
                    } else {
                        if (checkRepeat(numbers, num)) {
                            System.out.println("输入重复，请重新输入！");
                        } else {
                            numbers[i] = num;
                            break;
                        }

                    }
                }

            }

        System.out.println("请输入第7个蓝球：");
        int shi = scanner.nextInt();
        //1~16
        if (shi < 1 || shi > 16) {
            System.out.println("输入有误，请重新输入！");
        } else {
            if (checkRepeat(numbers, shi)) {
                System.out.println("输入重复，请重新输入！");
            } else {
                numbers[6] = shi;

            }
        }return numbers;
    }
    public static boolean checkRepeat ( int[] numbers, int num){
        for (int i = 0; i < numbers.length; i++) {
            if (numbers[i] == num) {
                return true;
            }
        }
        return false;
    }public static void printNumber(int[] numbers) {
        for (int i = 0; i < numbers.length; i++) {
            System.out.print(numbers[i] + " ");
        }
        System.out.println();
    }
    //生成不会重复的7个数字作为中奖号码。前六个范围1~33，最后一个范围1~16
    public static int[] luckyNumber() {
        int[] lucky = new int[7];
        Random random = new Random();
        for (int i = 0; i < lucky.length - 1; i++) {
            while (true) {
                int number = random.nextInt(33) + 1;
                if (!checkRepeat(lucky, number)) {//如果没有重复的数字
                    lucky[i] = number;
                    break;
                }
            }
            lucky[6] = random.nextInt(16) + 1;


        }return lucky;

    }
    //判断用户输入的与生成的数字有几个相同

    public static void compareNumber(int[] numbers, int[] lucky) {
        int rednumber = 0;
        int bulenumber = 0;

        for (int i = 0; i < numbers.length - 1; i++) {
            for (int j = 0; j < lucky.length - 1; j++) {
                if (numbers[i] == lucky[j]) {
                    rednumber++;
                    break;
                }
            }
        }
            if (numbers[6] == lucky[6]) {
                bulenumber++;
            }
        System.out.println("共有" + rednumber + "个红球相同，" + bulenumber + "个蓝球相同。");
            if(rednumber == 6 && bulenumber==1){
                System.out.println("恭喜你获得大奖1000万！");
            }

            else if(rednumber == 6&& bulenumber==0){
                System.out.println("恭喜你获得大奖500万！");
            }
            else if(rednumber == 5&& bulenumber==1){
                System.out.println("恭喜你获得大奖3000！");
            }
            else if(rednumber == 5&& bulenumber==0){
                System.out.println("恭喜你获得大奖200！");
            }
            else if(rednumber == 4&& bulenumber==1){
                System.out.println("恭喜你获得大奖200！");
            }
            else if(rednumber == 4&& bulenumber==0){
                System.out.println("恭喜你获得大奖10！");
            }
            else if(rednumber == 3&& bulenumber==1){
                System.out.println("恭喜你获得大奖10！");
            }
            else {
                System.out.println("恭喜你获得大奖5！");
            }
    }
}