package exercise2.choice;

import java.util.*;
import exercise2.*;

public class ChoiceExerciseModel extends ExerciseModel {
    public static final int	CHOOSE_ONE = 0;
    public static final int	CHOOSE_ANY = 1;

    protected int		type;
    protected String[]		choices;

    public ChoiceExerciseModel() { }

    public void setSpecialProperties(Map properties) {
	String value;

	// Set the type.
	value = (String)properties.get("type");
	type = Integer.parseInt(value);

	// Set the choices.
	value = (String)properties.get("numChoices");
	int numChoices = Integer.parseInt(value);
	choices = new String[numChoices];
	for (int i = 0; i < numChoices; i++) {
	    choices[i] = (String)properties.get("choice_" + i);
	}
    }

    public int getType() { return type; }

    public int getNumChoices() { return choices.length; }

    public String[] getChoices() { return choices; }
}