System.out.println("\nIterator Example:\n");// First we make an Iterator by calling// the .iterator() method on the collectionIterator<string> avengersIterator = avengers.iterator();// And now we use .hasNext() and .next() to go through itwhile(avengersIterator.hasNext()) { System.ou...
packagejava.lang;importjava.util.Iterator;/**Implementing this interface allows an object to be the target of * the "foreach" statement. *@since1.5*/publicinterfaceIterable<T>{/*** Returns an iterator over a set of elements of type T. * *@returnan Iterator.*/Iterator<T>iterator(); } ...
public interface Iterator<E> { /** * Returns true if the iteration has more elements. (In other * words, returns true if next would return an element * rather than throwing an exception.) * * @return true if the iterator has more elements. */ boolean hasNext(); /** * Returnsthe n...
public interface Iterator<E> { /** * Returns true if the iteration has more elements. (In other * words, returns true if next would return an element * rather than throwing an exception.)* * @return true if the iterator has more elements.*/ boolean hasNext();/** * Returns the next...
Types that implement this expanded interface can be registered explicitly using register(). 如上要点归纳: 1、sequence是定义了__getitem__()和__len__()函数的可迭代对象,内置序列有list、str、tuple、bytes,dict虽然也实现了__getitem__()和__len__()函数,但它是映射类型。 2、抽象基类collections...
public interface Iterator<E> { /** * Returns true if the iteration has more elements. (In other * words, returns true if next would return an element * rather than throwing an exception.) * * @return true if the iterator has more elements. */ boolean hasNext(); /** * Returns ...
Iterable、Iterator、foreach 1. Iterable简介 实现此接口的对象支持迭代,允许该对象成为增强型for语句(有时称为“for-each”语句)的目标。 Iterable接口中只有一个iterator()方法(JDK8及8以后新增两个default方法),该方法返回Iterator类型对象。 publicinterfaceIterable<T>{Iterator<T>iterator();...}...
java-iterable和iterator的区别 Iterable: 可迭代 Iterator: 迭代器 Iterable中包含Iterator 如部分源码 代码语言:javascript 复制 publicinterfaceIterable<T>{/** * Returns an iterator over elements of type {@code T}. * * @return an Iterator. */Iterator<T>iterator();......
Collection, Iterable, and Iterator Interfaces Collection,Iterable,andIteratorInterfaces ••••TheCollectionInterfaceanditsHierarchyTheIterableandIteratorInterfacesFor-eachLoopswithIterableCollectionsReading:L&C3rd:15.1-15.22nd:3.2 1 Collections •AcollectionisatypicalexampleofAbstractDataType.•A...
public interface Iterable<T> { /* * Returns an iterator over a set of elements of type T. @return an Iterator. */ Iterator<T> iterator(); } [ 复制代码 ](javascript:void(0); "复制代码") for-each循环可以与任何实现了Iterable接口的对象一起工作。 而java....