while (spliterator1.tryAdvance(System.out::println)) { } System.out.println("stringSpliterator2stringSpliterator2stringSpliterator2"); // System.out.println("size"+spliterator1.estimateSize()); while (stringSpliterator2.tryAdvance(System.out::println)) { } System.out.println("stringSpliterator3st...
spliterator ISpliterator 分割器 傳回 IIterator 反覆運算器 備註 Iterator從Spliterator建立 。 應該透過反覆運算器完成元素周遊。 如果分割器在傳回反覆運算器之後運作,周遊的行為是未定義的。 的java.util.Spliterators.iterator(java.util.Spliterator<? extends T>)Java 檔。
It is a fail-fast iterator. It can be slow in the case of very large collections. 5. Java Spliterator for Parallel Iteration over Large Collections In all the above iterators one common disadvantage is there, that they are slow in the case of very large collections. To solve this problem...
迭代器(例如iterator()和spliterator()方法) 集合(toArray(...)、collect(...),使用集合toList()、toSet()、toColletion()、groupingBy()、partitioningBy()或toMap()) 特定元素(findFirst()、findAny()) 聚合(归约)可以是以下任何一种: 算法:min(...)、max(...)、count()或sum()、average()、summary...
defaultStream<E>stream(){returnStreamSupport.stream(spliterator(),false);} 然后会建立一个Stream,这个Stream就是一个 ReferencePipeline.Head。这里Head也是一个ReferencePipeline。static class Head<E_IN, E_OUT> extends ReferencePipeline<E_IN, E_OUT>。
If so, this Spliterator guarantees that method #trySplit splits a strict prefix of elements, that method #tryAdvance steps by one element in prefix order, and that #forEachRemaining performs actions in encounter order. A Collection has an encounter order if the corresponding Collection#iterator ...
Creates aSpliteratorover the elements described by thisIterable. Method Detail iterator Iterator<T> iterator() Returns an iterator over elements of typeT. Returns: an Iterator. forEach default void forEach(Consumer<? superT> action) Performs the given action for each element of theIterableuntil ...
Spliterator<E>spliterator() Creates alate-bindingandfail-fastSpliteratorover the elements in this list. List<E>subList(int fromIndex, int toIndex) Returns a view of the portion of this list between the specifiedfromIndex, inclusive, andtoIndex, exclusive. ...
at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:512) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:502) at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.jav...
迭代器与分割器:说明如何使用Iterator和Spliterator遍历集合元素。 3.2 输入输出流 字节流与字符流:介绍InputStream/OutputStream和Reader/Writer两类流的基本概念和使用场景。 文件操作:通过实例演示如何使用FileInputStream/FileOutputStream和FileReader/FileWriter进行文件读写操作。