模擬生產(chǎn)者與消費(fèi)者實(shí)例,生產(chǎn)者生產(chǎn)一個(gè)產(chǎn)品,消費(fèi)者就消費(fèi)一個(gè)產(chǎn)品 ,然后生產(chǎn)者再生產(chǎn),消費(fèi)者再消費(fèi)
***********************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(jìn)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(fèi)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(shù)調(diào)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(shí)現(xiàn)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