Simulation of two-color ball system to judge the winning situation

Case study

analysis

Analysis on the judgment of winning the prize ：
Define a method , Can receive an array of winning numbers , An array of user selected numbers .
Judge the final winning situation according to the number of hit red balls and basketball, and output the details and winning amount .

Code

package com.xxf.casedemo;

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

public class shuangsebog {
    
    public static void main(String[] args) {
    
        // Random 6 A red ball number （1-33 Can't repeat ）, Random basketball number （1-16） You can take an array and put it up as the winning number 
        int[] luckNumber = createLuckNumber();
        // Call a method to let the user enter 7 Numbers , Select the number as the user 
        int[] userNumber = userInputNumber();
  judge(luckNumber,userNumber);


    }

    public static void printArray(int[] arr) {
    
        for (int i = 0; i < arr.length; i++) {
    
            System.out.print(arr[i] + "\t");
        }
        System.out.println();// Line break 
    }

    public static void judge(int[] luckNumber, int[] userNumber) {
    
        // Judge whether you win the prize 
        // Definition 2 Variables store the number of red ball hits respectively , And the number of basketball Hits 
        int redHitNumber = 0;
        int blueHitNumber = 0;
        // Judge how many red balls you hit , Start Statistics 
        for (int i = 0; i < userNumber.length - 1; i++) {
    
            for (int j = 0; j < luckNumber.length - 1; j++) {
    
                // Every time we find the equality , It means that the current number hit 
                if (userNumber == luckNumber) {
    
                    redHitNumber++;
                    break;
                }
            }
        }
        // Blue ball number hit 
        blueHitNumber = luckNumber[6] == userNumber[6] ? 1 : 0;
        System.out.println(" The winning number is ：");
        printArray(luckNumber);
        System.out.println(" Betting number is ：");
        printArray(userNumber);
        System.out.println(" How many red balls did you hit ："+redHitNumber);
        System.out.println(" Whether you hit the basketball ："+(blueHitNumber==1?" yes ":" no "));
        // Judge the winning situation 
        if (blueHitNumber==1&&redHitNumber<3){
    
            System.out.println(" Congratulations , It's in 5 element ！");
        }else if(blueHitNumber==1&&redHitNumber==3||blueHitNumber==0&&redHitNumber==4){
    
            System.out.println(" Congratulations , It's in 10 element ！");
        }else if(blueHitNumber==1&&redHitNumber==4||blueHitNumber==0&&redHitNumber==5) {
    
            System.out.println(" Congratulations , It's in 200 element ！");
        }else if(blueHitNumber==1&&redHitNumber==5) {
    
            System.out.println(" Congratulations , It's in 3000 element ！");
        }else if(blueHitNumber==0&&redHitNumber==6) {
    
            System.out.println(" Congratulations , It's in 500 Ten thousand yuan ！");
        }else if(blueHitNumber==0&&redHitNumber==6) {
    
            System.out.println(" Congratulations , It's in 1000 Ten thousand yuan ！");
        }
    }


    public static int[] createLuckNumber() {
    
        // Define a dynamically initialized array , Storage 7 A digital 
        int[] numbers = new int[7];
        // Traversal array , Generate a corresponding number for each location 
        Random r = new Random();
        for (int i = 0; i < numbers.length - 1; i++) {
    
            while (true) {
    
                int data = r.nextInt(33) + 1;
                boolean flag = true;
                for (int j = 0; j < i; j++) {
    
                    if (numbers[j] == data) {
    
                        flag = false;
                        break;
                    }
                }
                if (flag) {
    
                    numbers[i] = data;
                    break;
                }

            }
        }
        numbers[numbers.length - 1] = r.nextInt(16) + 1;
        return numbers;
    }

    public static int[] userInputNumber() {
    
        // Define an array to store 7 Numbers 
        int[] numbers = new int[7];
        // Let the user type 6 A red ball number 
        Scanner sc = new Scanner(System.in);
        for (int i = 0; i < numbers.length - 1; i++) {
    
            System.out.println(" Please enter the number " + (i + 1) + " A red ball number （1-33, Do not repeat ）：");
            int data = sc.nextInt();
            // Save the currently entered data into the array 
            numbers[i] = data;

        }
        // Enter a basketball number separately 
        System.out.println(" Please enter the basketball number （1-16）：");
        numbers[6] = sc.nextInt();
        return numbers;

    }


}

test result