wang2/src/com/mathlearning/model/Question.java

package com.mathlearning.model;

import java.io.Serializable;

public class Question implements Serializable {
    private static final long serialVersionUID = 1L;
    
    private String content;
    private String[] options;
    private String correctAnswer;
    private String userAnswer;
    
    public Question(String content, String options, String correctAnswer) {
        this.content = content;
        this.options = options.split(",");
        this.correctAnswer = correctAnswer;
    }
    
    // Getters and setters
    public String getContent() { return content; }
    public void setContent(String content) { this.content = content; }
    
    public String[] getOptions() { return options; }
    public void setOptions(String[] options) { this.options = options; }
    
    public String getCorrectAnswer() { return correctAnswer; }
    public void setCorrectAnswer(String correctAnswer) { this.correctAnswer = correctAnswer; }
    
    public String getUserAnswer() { return userAnswer; }
    public void setUserAnswer(String userAnswer) { this.userAnswer = userAnswer; }
    
    public boolean isCorrect() {
        return correctAnswer != null && correctAnswer.equals(userAnswer);
    }
    
    public String getOptionsAsString() {
        return String.join(",", options);
    }
}