gistfile1.java

public class QuizQuestion {
    private final JLabel question;
    
    public QuizQuestion(String question) {
        this.question = new JLabel(question);
    }
    
    public void addToContainer(JComponent container) {
        container.add(question);
    }
}

/* ... */

List<QuizQuestion> questions = loadQuestions();
for (QuizQuestion question: questions) {
    question.addToContainer(questionPanel);
}