import java.util.Random;


public class LotteryNumbers {
    private static final int LOTTERY_NUMBER_LENGTH = 7;
    private static final int LOTTERY_MAX_NUMBER = 39;
    private int[] mNumbers;

    public LotteryNumbers() {
        drawNumbers();
    }

    private void drawNumbers() {
        mNumbers = new int[LOTTERY_NUMBER_LENGTH];
        Random r = new Random();
        for (int i = 0; i < LOTTERY_NUMBER_LENGTH; i++) {
            mNumbers[i] = r.nextInt(LOTTERY_MAX_NUMBER) + 1;
        }
    }

    public int[] numbers() {
        return mNumbers;
    }

    public boolean containsNumber(int number) {
        for (int i : mNumbers) {
            if (number == i) {
                return true;
            }
        }
        return false;
    }
}