@Test public void whenPeekThanResultFirstElement() { assertThat(list.peek(), is(1)); }
public E peek() { return this.get(0); }
MyQueueList extends MyLinkedList<E> { public E peek() { return this.get(0); } }
MyQueueList extends MyLinkedList<E> { public E peek() { return this.get(0); }  }
MyQueueList extends MyLinkedList<E> { public E peek() { return this.get(0); }  void offer(E e); E peek(); E poll(); }
MyQueueList extends MyLinkedList<E> { public E peek() { return this.get(0); }  void offer(E e); E peek(); E poll();  }