注:wait()和notify()应当用在synchronized内
package com.test;
import java.util.ArrayList;
public class ThreadWaitTeste {
public static void main(String[] args) {
ArrayList<String> ar = new ArrayList<String>();
Product p = new Product(ar);
Consumer c = new Consumer(ar);
Thread t1 = new Thread(p);
Thread t2 = new Thread(c);
t1.start();
t2.start();
}
}
class Product implements Runnable{
ArrayList<String> array;
public Product(ArrayList<String> array){
this.array= array;
}
public void run() {
while (true){
synchronized(array){
if(this.array.size()<5){
this.array.add("test!");
this.array.add("test!");
this.array.add("test!");
this.array.add("test!");
System.out.println("Product size : "+array.size());
}else{
System.out.println("Product wait size : "+array.size()+"数量少于5,等待......");
try {
array.wait();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
}
class Consumer implements Runnable{
ArrayList<String> array;
public Consumer(ArrayList<String> array){
this.array= array;
}
public void run() {
while(true){
synchronized(array){
if(this.array.size()>=5){
this.array.remove(1);
System.out.println("Consumer size : "+array.size());
}else{
try {
array.notifyAll();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
}
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