Java tutorial
import java.util.Iterator; import java.util.concurrent.ArrayBlockingQueue; import java.util.concurrent.BlockingQueue; public class Main { public static void main(String[] argv) throws Exception { int capacity = 10; BlockingQueue<Integer> queue = new ArrayBlockingQueue<Integer>(capacity); for (int i = 0; i < 10; i++) { queue.add(i); } Iterator<Integer> it = queue.iterator(); while (it.hasNext()) { System.out.println(it.next()); } } }