<code java>
package TestIngresso;

public class IlThread extends Thread {

	AlternatingProtocol ap = null; 
	int order = 0; 

	public IlThread(AlternatingProtocol ap, int order) {
		this.ap = ap; 
		this.order = order;
	}

	public void run() {
		if(order == 0) {
			ap.P();
		}
		while(true) {
			System.out.println(this.getName() + " sbloccato");
			int secs = ((int) (Math.random() * 10.0));
			while(secs > 0) {
				try { 
					Thread.sleep(1000);
				} catch(InterruptedException e) {
					e.printStackTrace();
				}
				System.out.println(this.getName() +" "+ secs--);
			}
			ap.V();
			System.out.println(this.getName()+ " in attesa ...");
			ap.P();
		}
	}

}
<code>