[C ++ design mode] iterator Mode
Iterator mode definition: provides a method to access each element of an aggregate object sequentially without exposing the object.
The iterator is divided into internal iterator and external iterator. The internal
IteratorAn iterator is used to access elements in a sequence. Its usage is similar to a pointer (in fact, an iterator can be seen as a generalized pointer ). The difference is that the iterator is more abstract than the pointer. It can point to a
Python iteration and iterator, and python
We will learn important concepts of python iterations and iterators through simple and practical examples such as list iterator and xrange.
Iteratable
A sequence of objects, physical or virtual storage. List,
1. iterator and Closure:In Lua, The iterator is usually a function. Every time the iterator function is called, the "Next" element in the set is returned. Each iterator must maintain a certain state between each successful call so that it can know
Learning python for some time, in the learning process encountered a lot of difficult to understand things, do a summary, hoping to have some help to other friends.Completely personal understanding, inevitably wrong, welcome other big God friends
The Java.util package contains a series of important collection classes. This article will start with the analysis of the source, in-depth study of the internal structure of a collection class, as well as traversing the collection of iterative mode
Explanation of ES6 syntax iteration protocols and iterator protocols; explanation of es6
The supplement of ECMAScript 2015 is not a new built-in or syntax, but a protocol. These protocols can be implemented by any object that complies with certain
1. The iterator mode provides the same functions as the iterator. It encapsulates sequential traversal of objects, because the storage methods of the object set of the subclass may be different. However, the stored objects are consistent.
Public
We often use the iterative interface provided by JDK to iterate over the Java collection.
Iterator iterator = List.iterator ();
while (Iterator.hasnext ()) {
String string = Iterator.next ();
Do something
}
iterations, in fact, we can
Java Source Analysis: In-depth discussion of iterator mode
The Java.util package contains a series of important collection classes. This article will start with the analysis of the source, in-depth study of the internal
Vector1. Internal data structure: continuous storage, such as arrays.
2. Random Access to each element. The time required is a constant.
3. The time required to add or delete an element at the end is irrelevant to the number of elements. The time
Iterator (iterator) and stliterator of STL3. Introduction to the iterator
In addition to using subscript to access elements of a vector object, the standard library also provides the method of accessing elements: Using iterator. An iterator is a
This article mainly introduces Python iterations and iterators in detail. If you are interested, you can refer to the important concepts and iterators we will learn about python, through simple and practical examples such as list iterator and xrange.
Background: If a file is increasing data incrementally, if you need to read this file incrementally, you can iterate through the incremental data using the iterator design pattern.
For example: a document Aa.txt
Aaa
Aaa
Aaa
Aaa
You can divide the
From http://blog.csdn.net/shuangde800
Enter the iterator Mode
The iterator is almost the most commonly used design mode and is implemented in all object-oriented languages.
1. The iterator first requires an iterator interface:
Public interface
Python iterator and generator instance details, python Generator
This article describes the python iterator and generator with examples, as shown below:
1. iterator Overview: An iterator is a way to access collection elements. The iterator object is
Objective
At the end of the year, the time is really very fast ah. Recently also very sentimental, always miss college days, dream often dream. Dream of the university in front of the computer silly knocking on the keyboard, writing code, dealing
The Java.util package contains a series of important collection classes. This article will start with the analysis of the source, in-depth study of the internal structure of a collection class, as well as traversing the collection of iterative mode
In the previous article, we talked about the icomparable and icomparer interfaces. In this article, I will tell you about the two interfaces ienumerator and ienumerable used for enumeration element sets. Ienumerator is used to implement an iterator (
Excerpted from the iterator section of. NET platform and C # Object-Oriented Programming
You must read books and take notes to understand them in a down-to-earth Manner. Otherwise, the concept of writing a program will be vague and will not be used.
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.