模擬生產者與消費者實例，生產者生產一個產品，消費者就消費一個產品 ，然后生產者再生產，消費者再消費
***********************核心方法類****************
package test.com;
class Queue
// key
{
int value;
boolean bFull = false;
public synchronized void put(int i) {
if (!bFull) {
value = i;
bFull = true;
notify();// 必須用在synchronized
}
try {
wait();// 必須捕獲異常
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public synchronized int get() {
if (!bFull)
try {
wait();//進入
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
bFull = false;
notify();
return value;
}
}
package test.com;
class Producter extends Thread
{
Queue q;
Producter (Queue q)
{
this.q=q;
}
public void run()
{
System.out.println(“********producter****start*****”);
for(int i=1;i《10;i++)
{
System.out.println(“producter ：”+i);
q.put(i);
}
System.out.println(“********producter*****end****”);
}
}
**********************************************************************
****************************消費者類*********************************
package test.com;
class Consumer extends Thread
{
Queue q;
Consumer(Queue q)
{
this.q=q;
}
public void run()
{
System.out.println(“********Consumer****start*****”);
while(true)
{
System.out.println(“Consumer：”+q.get());
System.out.println(“********Consumer****end*****”);
}
}
}
************************************************************************
*******************************主函數調用類**********************************
package test.com;
public class Test {
public static void main(String[] args) {
Queue q=new Queue();
Producter p=new Producter(q);
Consumer c=new Consumer(q);
p.start();
c.start();
}}
*****************************************************************
OK，實現完畢
wait方法——把線程放入wait set
notify方法——從wait set拿出線程
notifyAll方法——從wait set拿出所有線程
wait、notify、notifyAll是Object類的方法