# 7月8日　デザインパターン　課題
## TimeAdmin.java(Observerｲﾝﾀｰﾌｪｰｽ)

interface TimeAdmin {
    public void update(Subject subject);
}

## CuckooClock.java(ConcreteObserverクラス)

class CuckooClock implements TimeAdmin {
    public void update(Subject subject) {
        int cnt;
        cnt = ((concreteSubject) subject).getHour();
        for (int i = 0; i < cnt; i++) {
            System.out.println("ぽっぽー！");
        }
    }
}

## SubtractionDisplay.java(ConcreteObserverクラス)

class SubtractionDisplay implements TimeAdmin {
    private int countDownValue = 10000;

    public void update(Subject subject) {
        countDownValue = countDownValue - 1;
        System.out.println(countDownValue);
    }
}