This article is the main part of the PHP class on the $this,static,final,const,self of these key words to use the method.
$this
$this represents the current instance, using the form of $this->value= ' phpernote ' when the internal method of the
1 Object-oriented 1) object-oriented features which I) abstractAbstraction is about ignoring aspects of a topic that are not related to the current goal, so that you can more fully focus on the aspects that are relevant to the current goal.
This article is the main part of the PHP class on the $this,static,final,const,self of these key words to use the method.
$this
$this represents the current instance, using the form of $this->value= ' phpernote ' when the internal method of the
Previously written programs have been running away from this problem, tag what are required to use the program's own input, for some lazy people and for the experience of the program, it is hoped to have the automatic generation of article keywords,
Please read the following procedure:
public class hello{
public static void Main (string[] args) {//(1)
System.out.println ("hello,world!"); (2)
}
}
Read this program, for most of the learning Java from, are not unfamiliar. Even if you
Concurrenthashmap is a newly added thread-safe map collection in Java5 that can be used to replace HashTable. As for how CONCURRENTHASHMAP can improve its efficiency, most people may simply know that it uses multiple locks instead of a single lock
This article is the main part of the PHP class on the $this,static,final,const,self of these key words to use the method.
$this
$this represents the current instance, using the form of $this->value= ' phpernote ' when the internal method of the
Reuse code is one of the many compelling features of Java. But to be a very revolutionary language, it is not enough to just copy and change the code, and it must be able to do more.
Two types of code reuse mechanisms: Composition and inheritance
1.
In-depth analysis of php object-oriented. In the past, the object orientation was limited to the rote memorization model. after working for so long, it turned to be an experience for everyone to see. 1. finalfinal: php5 adds a final keyword. If the
In the previous section we introduced the basic concepts of inheritance and polymorphism, the basic concept is relatively simple, the subclass inherits the parent class, automatically owns the parent class's properties and behavior, and can extend
Single Case design modeSingleton is a pattern of creation in which a class takes Singleton mode, and when the class is created, it is possible to produce only one instance for external access and a global access point.The core points of knowledge
In PHP, the final static $this keyword is mainly used in the class or object, I will learn the final static $this notes, I need to know the friend can refer to.
Final keyword
The PHP final keyword is used in front of a function or class name to
2.3 Member methods (functions)
The member approach I understand is to implement specific functions of this class, or what this class can do. It does not differ from functions outside the class, but is declared within the class. You need to use the
The object processing part of the new object model PHP has been completely rewritten, providing better performance and more functions. In previous PHP versions, objects are treated as primitive simple types (such as integer and string). the
* This article supplements and revises the ClassesandObjectsinPHP5 series and introduces the overall framework of the PHP5 object system. However, some features are not described in detail. We strongly recommend that you read this article after
The new object model
The object processing part of PHP has been completely rewritten, with better performance and more functionality. In previous versions of PHP, objects were treated as primitive simple types
(such as Integer and string), the
features
A singleton class can have only one instance.
The Singleton class must create its own unique instance.
The Singleton class must provide this instance to all other objects.
Singleton mode ensures that a class has only
PHP Object-Oriented programmingObject-oriented program programming (object Oriented programming)First, the concept of object-oriented programmingPHP introduces an object-oriented design method that "encapsulates" the data and the corresponding
The final keyword for Java is often used in daily work, such as when defining constants. If a C + + programmer is born, it may be analogous to the C + + language of the define or the Const keyword, but in fact, they are still in the semantic gap is
Single Case design modeSingleton is a pattern of creation in which a class takes Singleton mode, and when the class is created, it is possible to produce only one instance for external access and a global access point.The core points of knowledge
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