In addition, Iterator adds an optional remove operation, and has shorter method names. New implementations should consider using Iterator in preference to Enumeration. 可以大胆猜一下,应该是当初设计没有考虑全,只有两个方法,而且名字还太长了 - -。 后来在 JDK 1.2 推出了 Iterator 替代它的功能。虽然 ...
遍历Java集合(Arraylist,HashSet...)的元素时,可以采用Iterator迭代器来操作 Iterator接口有三个函数,分别是hasNext(),next(),remove()。 今天浅谈remove函数的作用 官方解释为: Removesfromthe underlying collection the last element returned bythisiterator (optional operation). This method can be called only o...
Java documentation forjava.lang.Iterable.iterator(). Portions of this page are modifications based on work created and shared by theAndroid Open Source Projectand used according to terms described in theCreative Commons 2.5 Attribution License. ...
Java documentation forjava.util.List.listIterator(int). Portions of this page are modifications based on work created and shared by theAndroid Open Source Projectand used according to terms described in theCreative Commons 2.5 Attribution License. ...
The iterator() method can be used to get an Iterator for any collection:ExampleGet your own Java Server // Import the ArrayList class and the Iterator class import java.util.ArrayList; import java.util.Iterator; public class Main { public static void main(String[] args) { // Make a ...
Iterator Method Reference Feedback Definition Namespace: Java.Util.Concurrent Assembly: Mono.Android.dll Returns an iterator over the elements in this deque in proper sequence. [Android.Runtime.Register("iterator", "()Ljava/util/Iterator;", "GetIteratorHandler:Java.Util.Concurrent.IBlockingDeque...
Iterator Method Reference Feedback Definition Namespace: Java.Util Assembly: Mono.Android.dll Lazily loads the available providers of this loader's service. C# Copy [Android.Runtime.Register("iterator", "()Ljava/util/Iterator;", "")] public Java.Util.IIterator? Iterator (); Returns I...
packagecom.tutorialspoint;importjava.util.ArrayList;importjava.util.Iterator;publicclassArrayListDemo{publicstaticvoidmain(String[]args){// create an empty array listArrayList<Integer>arrayList=newArrayList<>();// use add() method to add elements in the arrayListarrayList.add(0);arrayList.add(1);arr...
Detail: Field | Constr | Method java.util Interface Iterator<E>Type Parameters: E - the type of elements returned by this iterator All Known Subinterfaces: ListIterator<E> public interface Iterator<E> An iterator over a collection. Iterator takes the place of Enumeration in the Java collections...
the last element returned by this iterator (optional operation). This method can be called only once per call tonext(). The behavior of an iterator is unspecified if the underlying collection is modified while the iteration is in progress in any way other than by calling this method. ...