chopsticktest.java

来自「java经典10例子」· Java 代码 · 共 36 行

class ChopStick extends Thread{
	boolean available;
	ChopStick() {  available=true; }
	public synchronized void takeup() {//取走筷子准备就餐
		while(!available) {
			try {
				System.out.println("哲学家等待筷子");
				wait();
			}catch(InterruptedException e) { }
		}
		available=false;
		System.out.println("哲学家状态：就餐");
	}
	public synchronized void putdown() {//哲学家就餐后放下筷子
		available=true;
		System.out.println("哲学家状态：思考");
		notify();
	}
	
	public void run(){
		takeup();
		putdown();
	}
}

public class ChopStickTest{
	private static ChopStick phi[] = new ChopStick[5];
	
	public static void main(String args[]){
		for(int i=0;i<5;i++){
			phi[i]=new ChopStick();
			phi[i].start();
		}
	}
}