E9.7

public class Question {
	private String text;
	private String answer;
	public Question()
	{
		text = "";
		answer = "";
	}

	public void setText(String questionText)
	{
		text = questionText;
	}


	public void setAnswer(String correctResponse)
	{
		answer = correctResponse;
	}

	public boolean checkAnswer(String response)
	{
		return response.equals(answer);
	}

	public void display()
	{
		System.out.println(text);
	}
	public String toString()
	{
		return "Question[text=" + text + "]";
	}
	public String toString2()
	{
		return "Question[answer=" + answer + "]";
	}
}
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import java.util.ArrayList;


public class ChoiceQuestion extends Question {
	private ArrayList<String> choices;

	public ChoiceQuestion()
	{
		choices = new ArrayList<String>();
	}

	public void addChoice(String choice, boolean correct)
	{
		choices.add(choice);
		if(correct)
		{
			String choiceString = "" + choices.size();
			setAnswer(choiceString);
		}
	}

	public void Display()
	{
		for(int i = 0; i < choices.size(); i++ )
		{
			super.display();
			int choiceNumber = i + 1;
			System.out.println(choiceNumber + ": " + choices.get(i));
		}
	}
	public String toString2()
	{
		return "Question[choices=" + choices + "]";
	}

}

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