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import java.util.LinkedList;
public class Syn{
private LinkedList<Object> myList =new LinkedList<Object>();
private int MAX = 10;
public Syn(){}
public void start(){
new Producer().start();
new Consumer().start();
}
public static void main(String[] args){
Syn s1 = new Syn();
s1.start();
}
class Producer extends Thread{
public void run(){
for(int i=0;i<50;i++){
try{
sleep(10);
}catch(Exception e){
e.getMessage();
}
synchronized(myList){
try{
while(myList.size() == MAX){ //用while循环,不用if()
System.out.println("warning: it's full!");
myList.wait();
}
Object o = new Object();
if(myList.add(o)){
System.out.println("Producer: " + o);
myList.notify();
}
}catch(InterruptedException e){
System.out.println("producer is interrupted!");
}
}
}
}
}
class Consumer extends Thread{
public void run(){
for(int i=0;i<50;i++){
try{
sleep(100);
}catch(Exception e){
e.getMessage();
}
synchronized(myList){
try{
while(myList.size() == 0){ ////用while循环,不用if()
System.out.println("warning: it's empty!");
myList.wait();
}
Object o = myList.removeLast();
System.out.println("Consumer: " + o);
myList.notify();
}catch(InterruptedException ie){
System.out.println("consumer is interrupted!");
}
}
}
}
}
}
//rt,多线程的生产者消费者模式,一个生产者和一个消费者,帮解释下为何不用if,要用while(),没弄明白。