java - 识别文件中的某个字符并将其隐藏以防止执行

Question

我是java初学者，我正在尝试做一种“谁想成为百万富翁”游戏。我用 10 个级别来做。

我有 1 个文件夹，其中包含 5 个级别的 txt 文件(每个 txt 文件中有 1 个问题)。因此，如果您重复游戏一两次，您可能不会再遇到同样的问题。文本文件具有与此相同的结构。

What is the minimum of players in a footbal game?0 1)80 2)100 3)91 4)7  

The boolean before the answear options points the correct answear but when i read the file. I want to read the file and identify the correct answear(but not print it) to tell if the option the player choose is right or not.

How can I do it? Is there another way to the same? Thanks for helping :)

public static void main(String[] args) throws FileNotFoundException, IOException {
    
    Scanner input=new Scanner (System.in);
    int option;
    boolean menu;
    double[] balance = new double[0];
 
    //::::::::::::::::::::MENU:::::::::::::::::::::::::::::
    System.out.println("<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>");
    System.out.println("<<<Who wants to be millionaire?>>>");
    System.out.println("<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>");
    
    System.out.println("whats your name?"); 
    String name = input.nextLine(); 
    System.out.println("Welcome"+ name);
    
    menu = true;
    while(menu==true){
    System.out.println("<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>");
    System.out.println("<<<<<<<<<< 1 - Play >>>>>>>>>>");
    System.out.println("<<<<< 2 - Last Score >>>>");
    System.out.println("<<<< 3 - Best 10 scores >>>>");
    System.out.println("<<<<<<<<<<< 4 - Exit >>>>>>>>>>");
    System.out.println("<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>");
     
    System.out.println("choose your option: ");
    opcao=input.nextInt();  

    //:::::::::::::::::::: 1 - Play :::::::::::::::::::::::::::::
    switch(option){
        case 1:
        //random char to create the file name
        Random r = new Random();
        char c = (char)(r.nextInt(5) + 'a');
        String LetterFile=String.valueOf(c);  
        System.out.println(letterFile); 
        String nameFile = letterFile + ".txt";

        
        BufferedReader read = new BufferedReader(new FileReader(nameFile));
        String line;
        while((line = read.readLine()) != null)
        {
            System.out.println(line);
        }
        ler.close();
        
        System.out.println("Whats the answear?: ");
        String answear1 = input.nextInt();  
        System.out.println("Escolheu a resposta: "+answear1 );

        break;
        
  //:::::::::::::::::::: 4 - EXIT :::::::::::::::::::::::::::::      
        case 4:

                System.out.println("THANKS FOR PLAYINGr!");
                System.exit(0);
        
    }//while
    } //switch case
}//main   

}

Answer 1

使用下面的 JSON 结构。每个文件都会有一个 json。您选择第一个文件，读取 json 并将其填充到您的 java 对象中(您可以使用 jackson 库，它会自动为您执行此操作，您只需要创建要映射的 POJO 结构)。

所以

当您只需要显示选项时:使用 json 中的选项数组对象填充 java 对象。

当您还需要显示答案时:您可以从 java 对象中选择答案键，并从 json 填充

JSON:

{
  "GameName": "millionaire game",
  "level": 1,
  "questions": [
    {
      "question": "What is the minimum of players in a footbal game?",
      "options": [
        8,
        10,
        9,
        7
      ],
      "answer": "7"
    },
    {
      "question": "Who scored maximum goal footbal game?",
      "options": [
        "Jhon",
        "Pitty",
        "Richard",
        "Mike"
      ],
      "answer": "Mike"
    },
    {
      "question": "What is the maximum of players in a footbal game?",
      "options": [
        8,
        10,
        9,
        7
      ],
      "answer": "7"
    }
  ]
}

始终使用 JSON 来执行此类任务。 Json 更易于维护和管理。