【Java】實現雙色球隨機彩票

 

目前對於對於輸入沒有進行限制（可以輸入相同的數字或大於雙色球號碼的數字，同樣也可以輸入字符），之后會進行更新。

　　

 

package pres.work;

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

/**
 * 實現雙色球隨機彩票
 * @author three
 *
 */
public class DoubleBall {

    public static void main(String[] args) {
        
        /**
         * 隨機雙色球，紅球六個(不重復)，藍球一個
         */
        int[] randomRedBall = new int[6];
        int[] randomBlueBall = new int[1];
        Random rand = new Random();
        for(int i = 0; i<randomRedBall.length; i++) {
            int r= rand.nextInt(33)+1;
            randomRedBall[i] = r;
            //遍歷，判斷是否重復
            for(int j = 0;j<i;j++) {
                if(randomRedBall[j] == r) {
                    --i;
                    continue;
                }
            }
        }
        randomBlueBall[0] = rand.nextInt(16)+1;

        /**
         * 鍵盤輸入紅/藍球號碼 相鄰號碼以空格隔開
         */
        Scanner sc = new Scanner(System.in);
        int[] setRedBall = new int[6]; 
        System.out.print("請輸入選擇的紅球：");
        for(int i = 0; i<randomRedBall.length; i++) {
            setRedBall[i] = sc.nextInt();
        }
        System.out.print("請輸入選擇的藍球：");
        int[] setBlueBall = new int[1];
        setBlueBall[0] = sc.nextInt();
        sc.close();
        
        //鍵盤輸入結束后，打印出中獎號碼，方便用戶對比
        System.out.printf("中獎紅球號碼 %s\n",Arrays.toString(randomRedBall));
        System.out.printf("中獎藍球號碼 %s\n",Arrays.toString(randomBlueBall));
        
        /**
         * 判斷隨機球與輸入球號碼是否相同，相同就加 1
         */
        int sumRed = 0;
        for(int i = 0; i<randomRedBall.length;i++) {
            for(int j = 0; j<setRedBall.length;j++) {
                if(randomRedBall[i] == setRedBall[j]) {
                    sumRed++;
                }
            }
        }
        int sumBlue = 0;
        if(randomBlueBall[0] == setBlueBall[0]) ++sumBlue;
        
        /**
         * 匹配中獎機制
         */
        if(sumRed == 6 && sumBlue == 1) {
            System.out.println("恭喜你獲得：一等獎");
        }else if(sumRed == 6 && sumBlue == 0) {
            System.out.println("恭喜你獲得：二等獎");
        }else if(sumRed == 5 && sumBlue == 1) {
            System.out.println("恭喜你獲得：三等獎");
        }else if(sumRed == 5 && sumBlue == 0 || sumRed == 4 && sumBlue == 1) {
            System.out.println("恭喜你獲得：四等獎");
        }else if(sumRed == 4 && sumBlue == 0 || sumRed == 3 && sumBlue == 1) {
            System.out.println("恭喜你獲得：五等獎");
        }else if(sumRed == 2 && sumBlue == 1 || sumRed == 1 && sumBlue == 1 || sumRed == 0 && sumBlue == 1) {
            System.out.println("恭喜你獲得：六等獎");
        }else {
            System.out.println("很遺憾，你沒中獎。多買幾次，總有機會的···");
        }
    }

}