class?ChopStick?{????//筷子類
	boolean?available;
????ChopStick（）?{
????????available=true;??//可以拿起
???}
????public?synchronized?void?takeup（）?{??//拿起動作
????????while（!available）?{
????????????try?{
????????????????wait（）;?
????????????????System.out.println（“哲學家等待另一根筷子“）;??
????????????}?catch（InterruptedException?e）?{?}
?????}
????????available=false;
????}
????
????public?synchronized?void?putdown（）?{??//放下動作
????????available=true;
????????notify（）;
????}
}


class?Philosopher?extends?Thread?{???//哲學家類
????ChopStick?left?right;??
????int?philo_num;??//哲學家編號
?????
?????Philosopher?（int?num?ChopStick?c1?ChopStick?c2）?{
?????????philo_num?=?num;
?????????left?=?c1;
?????????right?=?c2;
?????????setDaemon（true）;??//此函數(shù)設true時，關閉主線程，子線程也跟著關閉
?????????//否則，關閉主線程