다음은 Apache Commons Collections 라이브러리 (Library) 내 CircularFifoQueue 예시입니다. public class CircularFifoQueueTest { @Test public void test() { CircularFifoQueue circularFifoQueue = new CircularFifoQueue(5); for (int i = 0; i < 10; i++) { circularFifoQueue.add(i); System.out.println(circularFifoQueue); System.out.println(circularFifoQueue.get(circularFifoQueue.size() - 1)); } } } 다음 디펜던시 (Dependency)를..