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import java.util.LinkedList;

import java.util.Queue;

class TaskQueue{

final Queue<String> queue = new LinkedList<String>();

public synchronized String getTask() throws InterruptedException {

while(this.queue.isEmpty()){

this.wait();

}

return queue.remove();

}

public synchronized void addTask(String name){

this.queue.add(name);

this.notifyAll();

}

}

class WorkerThread extends Thread{

TaskQueue taskQueue;

public WorkerThread(TaskQueue taskQueue){

this.taskQueue = taskQueue;

}

@Override

public void run() {

while(!isInterrupted()){

String name = "";

try{

name = taskQueue.getTask();

}

catch (InterruptedException e){

e.printStackTrace();

}

String result = ">" + name;

System.out.println(result);

}

}

}

public class Main1 {

public static void main(String[] args) throws Exception {

TaskQueue taskQueue = new TaskQueue();

WorkerThread worker = new WorkerThread(taskQueue);

worker.start();

taskQueue.addTask("AAA");

Thread.sleep(1000);

taskQueue.addTask("BBB");

Thread.sleep(1000);

taskQueue.addTask("CCC");

worker.interrupt();

worker.join();

System.out.println("END");

}

}