Math_Learning/src/Base/Exam_result.java

package Base;

import java.util.Date;
import java.util.List;

public class Exam_result {
    private String exam_type;
    private int total_questions;
    private int correct_answers;
    private double score;
    private long duration; // 考试时长（秒）
    private List<Integer> wrong_questions; // 错题索引

    public Exam_result( String examType, int total,
                      int correct, double score, long duration,
                      List<Integer> wrong) {
        this.exam_type = examType;
        this.total_questions = total;
        this.correct_answers = correct;
        this.score = Math.round(score * 100.0) / 100.0;
        this.duration = duration;
        this.wrong_questions = wrong;
    }

    public String getExamType() { return exam_type; }
    public int getTotalQuestions() { return total_questions; }
    public int getCorrectAnswers() { return correct_answers; }
    public double getScore() { return score; }
    public long getDuration() { return duration; }
    public List<Integer> getWrongQuestions() { return wrong_questions; }

    public String get_time() {
        long minutes = duration / 60;
        long seconds = duration % 60;
        return String.format("%d分%d秒", minutes, seconds);
    }

    public String getCorrectRate() {
        return String.format("%.1f%%", (double) correct_answers / total_questions * 100);
    }
}