Demonstrate simple ask-question

Program.java

public class Program implements ActionListener
	// Store instance of Question clas in array
	private Question[] question = new Question[30];
	// Maintain question index to indicate current question
	private int CurrentQuestion;

	........

	public Program()
	{
		// instantiate question 1, assume answer is choice 2
		question[0] = new Question("This is question 1",
			new String {"choice 1", "choice 2", "choice 3", "choice 4"},
			1);

		..... do it to 30

		// Set current question index
		CurrentQuestion = -1;
	}

	private void MoveNext() {
		if (CurrentQuestion < question.Length) {
			CurrentQuestion++;
		}
		else {
			return;
		}

		// I assume every UI variables's name

		// Question itself
		Label.setText(question[CurrentQuestion].getQuestionText());

		// Button that indicate choice
		Button1.setText(question[CurrentQuestion].getChoice()[0]);
			..... do it to choice 4
	}

	private void actionPerformed(ActionEvent e)
	{
		if (e.getSource().getText().equals(
		question[CurrentQuestion].getChoice()[question[CurrentQuestion].getAnswer()])) {
			// user click correct answer
		}
		else {
			// user click incorrect answer
		}
	}

Question.java

public class Question {
	private string QuestionText;
	private string[] Choice;
	private int Answer;

	public Quention(string question, string[] choice, int answer) {
		QuestionText = question;
		Choice = choice;
		Answer = answer;
	}

	public string getQuestionText() {
		return QuestionText;
	}

	public string[] getChoice() {
		return Choice;
	}

	public int getAnswer() {
		return Answer;
	}
}