java - 如何在一页中显示不同类别的不同分数

Question

我有 3 个不同的类别(每个类别都有不同的框架)，它们通过“继续”按钮连接，最后一个框架是“完成”按钮。单击“完成”按钮后，我想显示每个类别的结果(按分)，但每当我单击“完成”按钮时，最后一个类别的分数与两个类别的分数相同。请帮助我，我不知道该怎么做。

请注意，我的其他 2 个框架中没有代码来以结果形式显示分数

//这是我最后一帧中的代码...

try {
    ResultSet rs = stmt.executeQuery(
        "Select * from Questions where exam_category= 'Mathematics'");

    while (rs.next()) {
        Questions x = new Questions(
            rs.getString("Question_Id"), 
            rs.getString("Subject_Code"), 
            rs.getString("Exam_Category"),
            rs.getString("Question"), 
            rs.getString("Choice_A"), 
            rs.getString("Choice_B"),
            rs.getString("Choice_C"), 
            rs.getString("Choice_D"), 
            rs.getString("Answer"));
        list.add(x);
    }

    for (int i = 0; i < list.size(); i++) {
        if(list.get(i).getAnswer().equals(userAnswer.get(i).toString())) {
            score++;
            System.out.print(score);
        }
    }

    new Result(score, list).setVisible(true);
    this.dispose();

} catch (SQLException ex) {
    Logger.getLogger(LogicalReasoning.class.getName()).log(Level.SEVERE, null, ex);
}

//这是我的结果表单中的代码

public Result(int score, ArrayList<Questions> list) {
    initComponents();
    txtLogical.setText(String.valueOf(score + " out of " + list.size()));
    txtEnglish.setText(String.valueOf(score + " out of " + list.size()));
    txtMath.setText(String.valueOf(score + " out of " + list.size()));
}

Answer 1

尝试以下方法:

Result 应该得到 3 个主题的所有分数，所以我将其更改为:

public Result(int[] logicalResult, int[] englishResult, int[] mathResult) {
    initComponents();        
    txtLogical.setText(logicalResult[0] + " out of " + logicalResult[1]);
    txtEnglish.setText(englishResult[0] + " out of " + englishResult[1]);
    txtMath.setText(mathResult[0] + " out of " + mathResult[1]);
}

每个主题结果都是一个 int[]，其中包含 2 个值，即该主题的分数和问题数量。

然后为了满足这一点，我将有一个方法为给定主题返回那个小int[]，因此采用您当前的实现，它将是这样的:

private int[] getScoreForTopic(String topic, List<Answer> userAnswers) {
    int score = 0;
    List<Questions> list = new ArrayList<>();

    try {

        Connection con;
        // instantiate your connection

        PreparedStatement stmt = con.prepareStatement(
           "Select * from Questions where exam_category= ?");
        stmt.setString(1, topic);
        ResultSet rs = stmt.executeQuery();

        while (rs.next()) {
            Questions x = new Questions(
                    rs.getString("Question_Id"),
                    rs.getString("Subject_Code"),
                    rs.getString("Exam_Category"),
                    rs.getString("Question"),
                    rs.getString("Choice_A"),
                    rs.getString("Choice_B"),
                    rs.getString("Choice_C"),
                    rs.getString("Choice_D"),
                    rs.getString("Answer"));
            list.add(x);
        }

        for (int i = 0; i < list.size(); i++) {
            if(list.get(i).getAnswer().equals(userAnswer.get(i).toString())) {
                score++;
                System.out.print(score);
            }
        }


    } catch (SQLException ex) {
        // ...
    }

    return new int[] {score, list.size()};
}

最后，您可以这样创建 Result 对象:

int[] logicalResult = getScoreForTopic("Logical", userAnswerLogical);
int[] englishResult = getScoreForTopic("English", userAnswerEnglish);
int[] mathResult = getScoreForTopic("Mathematics", userAnswerMath);

new Result(logicalResult, englishResult, mathResult).setVisible(true);
this.dispose();