Keyboard entry lottery random draw

     Lottery software 
        a、 Enter the name of the lucky draw through the keyboard , For multiple Raffles “|” Division of no. . When you're done typing ,
                 The console prints the name of the raffle , And prompt YES OR NO To confirm . Once confirmed 
                 recognize , Automatically assign to the raffle ID, Start raffle .( If there is a duplicate name , with ID Subject to )
        b、 Prizes are stored in a collection .
        c、1 Prize  1 individual    2 Prize  3 individual    3 Prize   4 individual .
        d、 Print your name every time you draw , And then type in next Start a second draw . If the prize is already 
                 Finish smoking , Then publish the winning summary .
         No more reminders next
        1. Initialize the name of the raffle 
        2. Initialize the prize information 
         Adopt the idea of object oriented programming    Split code  --》 Put the above two functions into the tool class 

/**
 *  Define a winner 
 */
public class LuckDog {
    private Integer id;// The winner id
    private String name;// The name of the winner 

    public LuckDog(Integer id, String name) {
        this.id = id;
        this.name = name;
    }

    @Override
    public String toString() {
        return "LuckDog{" +
                "id=" + id +
                ", name='" + name + '\'' +
                '}';
    }

    public LuckDog() {
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

**
 *  Define a class   Prizes 
 */
public class Prize {
    private String name;// The name of the prize 
    private String level;////
    private Integer count;// The number of prizes 

    @Override
    public String toString() {
        return "Prize{" +
                "name='" + name + '\'' +
                ", level='" + level + '\'' +
                ", count=" + count +
                '}';
    }

    public Prize(String name, String level, Integer count) {
        this.name = name;
        this.level = level;
        this.count = count;
    }

    public Prize() {
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getLevel() {
        return level;
    }

    public void setLevel(String level) {
        this.level = level;
    }

    public Integer getCount() {
        return count;
    }

    public void setCount(Integer count) {
        this.count = count;
    }
}

/**
 *  Define a winning result 
 */
public class Result {
    private Integer id;//id
    private String username;// The name of the winner 
    private String prizeName;// The winner's prize 

    @Override
    public String toString() {
        return "Result{" +
                "id=" + id +
                ", username='" + username + '\'' +
                ", prizeName='" + prizeName + '\'' +
                '}';
    }

    public Result() {
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPrizeName() {
        return prizeName;
    }

    public void setPrizeName(String prizeName) {
        this.prizeName = prizeName;
    }

    public Result(Integer id, String username, String prizeName) {
        this.id = id;
        this.username = username;
        this.prizeName = prizeName;
    }
}

/**
 *  Define a tool class 
 *  Accomplish two functions 
 * 1. Initialize the lottery information 
 * 2. Initialize the prize information 
 */
public class ToolsClass {

    // You need containers   Initialize the initial capacity of the raffle 
    static ArrayList<LuckDog> list = new ArrayList<>();

    // Define a static method   Initialize the lottery information 
    public static ArrayList<LuckDog> initperson() {
        // Get... From the console 
        System.out.println(" Please take part in the raffle information , If there are more than one , Intermediate use | separate ");
        Scanner sc = new Scanner(System.in);
        String strs = sc.nextLine();// Lottery information 

        //split(String patter)  Split a string into an array of characters 
        // Null check 
        if (strs != null && !strs.equals("") && !strs.equals("null")) {
            // indicate   Data is secure 
            String[] persons = strs.split("\\|");//  \\ Split |
            // Loop traversal  persons    Determine the length 
            for (int i = 0; i < persons.length; i++) {
                // Go to list Add lottery data to the container 
                list.add(new LuckDog((i + 1), persons[i]));//LuckDog  Storage type object 
            }
        } else {
            // If the information in front is illegal      recursive 
            initperson();
        }

        // Traverse list Containers 
        for (int i = 0; i < list.size(); i++) {
            System.out.print(" "+ list.get(i).getName()+" ");
        }

        // Return the results to the program 
        return list;
    }

    //2. Initialize prize information 
    public static ArrayList<Prize> initPrize(){
        // Construct an empty prize container 
        ArrayList<Prize> list =new ArrayList<>();
        // Store prizes  Prize Class object 
        list.add(new Prize("IPhone12"," The first prize ",1));
        list.add(new Prize(" Huawei P40"," The second prize ",3));
        list.add(new Prize(" Water glass "," The third prize ",4));

        return list;
    }
}

    /*      
             test 
    */
public static void main(String[] args) {
        // Call directly ToolClass Class initperson() Method 
        ArrayList<LuckDog> ldalist = ToolsClass.initperson();
//        for (int i = 0; i < initperson.size(); i++) {
//            System.out.println(initperson.get(i));
//        }
        // Call directly ToolClass Class initPrize() Method 
        ArrayList<Prize> prize = ToolsClass.initPrize();
//        for (int i = 0; i < prize.size(); i++) {
//            System.out.println(prizes.get(i));
//        }
        // Building a scanner   object 
        Scanner sc = new Scanner(System.in);
        System.out.println(" Please enter 《YES NO》");
        String str = sc.nextLine();
        // Ignore case 
        if (("NO").equalsIgnoreCase(str)) {
            //
            System.out.println(" The lottery failed ！");
            return;// Program end 
        } else if (!("YES").equalsIgnoreCase(str)) {
            System.out.println(" The input data does not meet the requirements ！");
            return;// Program end 
        } else {
            // The program begins to draw 
            // Build the result container first 
            ArrayList<Result> results = new ArrayList<>();
            // loop   Number of cycles    The total number of prizes is 8
            while (ldalist.size() > 0 && prize.size() > 0) {// Conditions at the end of the cycle 
                // Start raffle 
                int index = (int) (Math.random() * ldalist.size());
                // According to the index, get the corresponding raffle 
                LuckDog luckDog = ldalist.get(index);// Lucky draw 
                // Prize    Smoke backwards     The third prize 
                Prize prize1 = prize.get(prize.size() - 1);
                // Splicing the winning result 
                results.add(new Result(luckDog.getId(), luckDog.getName(), prize1.getName()));
                // The number of prizes minus one     If the number of prizes is 1  The prize should be deleted 
                if (prize1.getCount() == 1) {
                    // Delete the corresponding prize 
                    prize.remove(prize1);
                } else {
                    // The number of prizes minus one 
                    prize1.setCount(prize1.getCount() - 1);
                }
                // Delete the information of the winner of the last round 
                ldalist.remove(index);// Delete... According to index , Delete objects directly 
                // Output the winner's information 
                System.out.println(" The winner this time is " + luckDog.getName() + ", The winner's id yes " + luckDog.getId() + ", The prize is " + prize1.getName() + ", Winning grade " + prize1.getLevel());
                // Judge again   The number of people and the number of prizes 

                if (prize.size() > 0 && ldalist.size() > 0) {
                    System.out.println(" Please enter next Start the next round of lottery ：");
                    String next = sc.next();
                    while (!"next".equalsIgnoreCase(next)) {
                        System.out.println(" Please enter next Start the next round of lottery ！");
                        // Repeat the input next Is it next The content of 
                        next = sc.next();
                    }
                }
            }
            // The draw is over 
            System.out.println("---------------------------");
            // Show the raffle summary 
            System.out.println(" Winning information results in ：");
            for (int i = 0; i < results.size(); i++) {
                System.out.println("ID："+results.get(i).getId() + "\t\t full name :" + results.get(i).getUsername() + "\t\t Prize name " + results.get(i).getPrizeName());
            }

        }

    }