package hw06;

public class MathQuestion extends ChoiceQuestion {

	public MathQuestion(int arg1, char op, int arg2, int... choices) {
		super("What is " + arg1 + op + arg2 + "?");
		int ans = eval(arg1, op, arg2);
		for (int c : choices) {
			addChoice(" " + c, c == ans);
		}
	}

	private static int eval(int v1, char op, int v2) {
		if (op == '+') return (v1 + v2);
		if (op == '-') return (v1 - v2);
		if (op == '*') return (v1 * v2);
		if (op == '/') return (v1 / v2);
		assert false : "Should never get here.";
		return 0;
	}

}