我是 Java 8 的新手，希望了解這兩種情況之間的區別。我知道一旦一個流被操作和消耗，那么流就不能再次被重用，它會給出一個錯誤。場景 1：List<String> title = Arrays.asList("Java8", "In", "Action");        Stream<String> s = title.stream();        s.forEach(System.out::println);        s.forEach(System.out::println); // THIS WILL GIVE ERROR - streams has been already operated and closed.當我運行這個時，我得到以下錯誤......這是公平的。Java8InActionException in thread "main" java.lang.IllegalStateException: stream has already been operated upon or closed    at java.util.stream.AbstractPipeline.sourceStageSpliterator(Unknown Source)    at java.util.stream.ReferencePipeline$Head.forEach(Unknown Source)    at com.test.Java8InAction.CH4.TraversableOnlyOnce.main(TraversableOnlyOnce.java:12)場景 2：// Filtering unique elementsList<Integer> numbers = Arrays.asList(1, 2, 1, 3, 3, 2, 4);numbers.stream().forEach(System.out::println);numbers.stream().filter(n -> n % 2 == 0).distinct().forEach(System.out::println);numbers.stream().filter(n -> n % 2 == 0).forEach(System.out::println);這里我也操作了stream，關閉了終端操作，那為什么沒有報錯呢？