iterator interface

Iterator mode:The iterator pattern is the mature pattern of traversing the collection, the key to the iterator pattern is to pass the task of iterating over the collection to an object called an iterator, which traverses and selects the objects in

C # design Pattern (16) -- Iterator Pattern)I. Introduction I shared my understanding of the command mode in the previous blog. The command mode mainly abstracts the behavior into commands, making the behavior of the requester and the behavior of

Note that the Iterator is better abstract than the object set, because we can make InfiniteIterators, NoRewindIterators, and so on without having to be consistent with the regular array. Therefore, Iterator lacks functions such as the count ()

Today, the main character of the PHP design patterns series is the Iterator model, which provides an abstraction in a common process: iteration on a set of objects (or scalar) that are not part of an object graph. Iterations have several different

Assertion (assertions) is a series of methods provided by PHPUnit to test the results of a program execution. In layman's terms, it is asserted that the execution of the program results for the value we expect, if not the test fails, the following

3.9What is the role of the collection framework?The main function of the collection framework is to organize the stored data in a certain structure and to access the data in a specific way.What are the storage methods in the Java collection

Original source: BlogspotThe main character of today's talk about PHP design patterns is the iterator (Iterator) pattern, which provides an abstraction in a very common process: an iteration on a set of objects (or scalars) in an unknown part of an

PHP has a number of powerful interfaces, where arrayaccess and Iterator work together to make objects as flexible as arrays.Of course, using arrayaccess with Iterator can be used to deal with arrays, but there is a better way to do this with the

The so-called Iterator mode provides a unified access mode for different containers. This article uses java containers as an example to simulate the principle of Iterator. For more information, see 1. First define a container Collection

Java Container class Java silently looking under the rain 1. OverviewThe Java Container class's JDK provides classes for saving objects . It hides specific implementations (arrays, linked lists), including commonly used data structures: collections,

? The following is a summary of the collection classes in Java, over time will share Java network programming, multithreading and other content, welcome criticism.1. A collection in Java is used to hold an object, that is, a collection is a

Sleep is a thread-class method that causes this thread to pause execution for a specified time and will execute the opportunity to other threads, but the monitoring state remains and is automatically restored when it is finished. Calling sleep does

This article mainly sorts out the predefined PHP interfaces, which are usually used in the project process: IteratorAggregate (aggregate Iterator), Countable, ArrayAccess, Ite This article mainly sorts out the predefined PHP interfaces, which are

How to Implement the coroutine in PHP 7, and how to implement the PHP7 coroutine Preface I believe everyone has heard of the concept of "coroutine. However, some people seem to understand this concept, but do not know how to implement it, how to use

Usage of the PHP detection interface Traversable This example describes how to use the PHP detection interface Traversable. We will share this with you for your reference. The details are as follows: Traversable is used to check whether a class

Enumeration is an interface class in Java.util that encapsulates methods for enumerating data collections in enumeration.Public interface Enumeration { /** * Tests If this enumeration contains more elements. * * @return true if

Java Iterable interface and IteratorJava Iterable interface and Iterator iterator Iterator The interface is defined as follows: public interface Iterator { boolean hasNext(); E next(); void remove();} This interface only contains

1. Two interview questions about the set Let's take a look at several questions: 1. Create an unchangeable set: As you can see, creating an immutable set mainly calls the unmodifiableSet () method of Collections, and the Collections class

Design Mode note 07-adapter mode and appearance Mode1 IntroductionIn this chapter, we will carry out a task, to the extent that it is impossible to put a square into a circular hole. That sounds impossible? With the design model, it is possible. Do

Java Collection framework and java Collection 1. Java Collection class overviewA. Origins of Collections A. We use arrays to process multiple identical data, but the array space cannot grow dynamically. It is troublesome to insert or delete elements.