PROSAGA码农传奇-eclipse-使用ArrayList <String>将文本文件解析为字符串，用于Q＆A结构化应用程序

<div class =“post-text”itemprop =“text”>
  
    首先，您需要确定文本文件的结构。这是你如何做到的。
  
  
    示例文本文件：
  
   <pre>
 <code>
 3
%%%
@@@ 
&&&
What is Java?%%%a. Food@@@b. Programming Language@@@c. Person%%%b
Is this a question?%%%a. Yes@@@b. No@@@c. Maybe%%%a
Are you correct?%%%a. Yes@@@b. No@@@c. Maybe%%%c

</code>
 </pre>
  
    该
     <code>
 3
 </code>
     是文件中的问题数量
     
    
该
     <code>
 %%%
 </code>
     是问题部分的分隔符
     
    
该
     <code>
 @@@
 </code>
     是选择部分的分隔符
     
    
该
     <code>
 &&&
 </code>
     是答案部分的分隔符（如果有多个答案的问题）
     
    
接下来的部分是问题。格式为：

<code>
 (question part)%%%(choice part)%%%(answer part)
 </code>
  
  
    由于有许多可能的选择，您可以格式化可能的选择，如下所示：

<code>
 (choice a)@@@(choice b)@@@(choice c)
 </code>
     这是
     <code>
 (choice part)
 </code>
     从上面。
  
  
    由于可能有许多可能的答案，您可以格式化可能的答案，如下所示：

<code>
 (answer a)@@@(answer b)@@@(answer c)
 </code>
     这是
     <code>
 (answer part)
 </code>
     从上面。
  
  
    一旦确定了文本文件的外观，就可以创建一个能够容纳这些问题，选择和答案的课程。一个例子是：
  
   <pre>
 <code>
 public class Question {
 private String question; // This will hold the question
 private String[] choices;// This will hold the choices
 private String[] answers;// This will hold the correct answer/s, I made it an array since there might be
 // a question that has multiple answers

public Question(String question, String[] choices, String[] answers) {
        this.question = question;
        this.choices = choices;
        this.answers = answers;

}

/**
     * @return the question
     */
    public String getQuestion() {
        return question;
    }

/**
     * @param question
     *            the question to set
     */
    public void setQuestion(String question) {
        this.question = question;
    }

/**
     * @return the choices
     */
    public String[] getChoices() {
        return choices;
    }

/**
     * @param choices
     *            the choices to set
     */
    public void setChoices(String[] choices) {
        this.choices = choices;
    }

/**
     * @return the answer
     */
    public String[] getAnswers() {
        return answers;
    }

/**
     * @param answer
     *            the answer to set
     */
    public void setAnswer(String[] answer) {
        this.answers = answer;
    }

}

</code>
 </pre>
  
    现在你有一个课程可以容纳那些问题，选择和答案。然后，您将创建一个读者课程，该课程将读取所有这些信息并将其传输到您的问题课程。这是一个例子：
  
   <pre>
 <code>
 import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class TextFileStuff {

public static Question[] fileAsString(String path) {
        try {
            BufferedReader br = new BufferedReader(new FileReader(path));
            String line = br.readLine(); // get the number of questions
            Question[] questionList = new Question[Integer.parseInt(line)]; // initialize the question array
            String partsDelimiter = br.readLine(); // get the delimiter for the question parts
            String choicesDelimiter = br.readLine(); // get the delimiter for the choices
            String answersDelimiter = br.readLine(); // get the delimiter for the answers
            int questionNumber = 0; // initialize the question number
            while ((line = br.readLine()) != null) { // loop through the file to get the questions
                if (!line.trim().isEmpty()) {
                    String[] questionParts = line.split(partsDelimiter); // split the line to get the parts of the
                                                                            // question
                    String question = questionParts[0]; // get the question
                    String[] choices = questionParts[1].split(choicesDelimiter); // get the choices
                    String[] answers = questionParts[2].split(answersDelimiter); // get the answers
                    Question q = new Question(question, choices, answers); // declare and initialize the question
                    questionList[questionNumber] = q; // add the question to the question list
                    questionNumber++; // increment the question number
                }
            }
            br.close();

return questionList;
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }
}

</code>
 </pre>
  
    现在你已经拥有了所有需要的部分，剩下要做的就是制作主要方法并将这些问题呈现给用户。你可以这样做：
  
   <pre>
 <code>
 import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        String path = "\\Test\\src\\res\\questions.txt"; // the path of the text file
                                                                                            // that contains the
                                                                                            // questions
        Question[] questionList = TextFileStuff.fileAsString(path);
        takeTheQuiz(questionList);
    }

public static void takeTheQuiz(Question[] questions) {
 int score = 0;
 Scanner userInput = new Scanner(System.in);
 for (int i = 0; i < questions.length; i++) {
 System.out.print("======================");
 System.out.print("Question " + (i + 1));
 System.out.println("======================");
 System.out.println(questions[i].getQuestion()); // Print the question
 String[] choices = questions[i].getChoices(); // get the choices
 for (int j = 0; j < choices.length; j++) { // loop through the choices
 System.out.println(choices[j]); // Print the choices
 }
 System.out.print("Input an answer : "); // Print the choices
 String answer = userInput.nextLine().toLowerCase();
 String[] answers = questions[i].getAnswers(); // get the answers
 for (int j = 0; j < answers.length; j++) { // loop through the answers
 if (answer.equals(answers[j])) { // check if the user's answer is correct
 score++; // increment score
 }
 }
 }
 System.out.println("You scored " + score + " out of " + questions.length);
 if (score == questions.length) {
 System.out.println("Cheater!");
 } else if (score <= 2) {
 System.out.println("You suuuuck.");
 } else {
 System.out.println("Mediocre performance.");
 }
 userInput.close();
 }

}

</code>
 </pre>
  
    以下是该程序的示例输出：
  
   <pre>
 <code>
 ======================Question 1======================
What is Java?
a. Food
b. Programming Language
c. Person
Input an answer : a
======================Question 2======================
Is this a question?
a. Yes
b. No
c. Maybe
Input an answer : v
======================Question 3======================
Are you correct?
a. Yes
b. No
c. Maybe
Input an answer : a
You scored 0 out of 3
You suuuuck.

</code>
 </pre>
  
    现在你有一个有点动态的问答程序。如果要添加/删除问题，则只需修改文本文件即可。随意评论澄清和问题。
  
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使用ArrayList 将文本文件解析为字符串，用于Q＆A结构化应用程序