$ this-> foo;
}
}
$ Class = new TestClass ('hello ');
// Directly output the object
Echo $ class;
?>
Output in the previous example: Hello17. Clone objectSometimes we need to use two or more identical objects in a project. If you use "new"If you re-create an object with a keyword, assign the same attribute to it, which is cumbersome and error-prone.It is necessary to clone an identical object based on an o
Original: 0 yuan expression Design 4-chapter 7 use built-in function "clone" to reach the shadow of pathThis chapter introduces a handy and fast built-in tool clone ? This chapter introduces a handy and fast built-in tool clone ? ? Why do you say it's like a shadow? ? Please refer to Naruto (NARUTO): "Ubiquitous" will be a person, can separate a few body, dozens
To implement a clone, a class needs to implement the Cloneable interface, which indicates that the object of this class has the function of cloning. The Cloneable interface is an Mixin interface that does not have any abstract methods, similar interfaces have serializable interfaces, which indicate that objects of this class can be serialized. The concept of another object should be explicitly cloned from one object: By cloning another object from one
New Testclonebean (); B.setintegers (Lists.newarraylist (1)); = jsonutils.getobjectmapperinstance (). writevalueasstring (b); = Jsonutils.getobjectmapperinstance (). ReadValue (S, Testclonebean. Class);1. Say Something firstDo not overwrite the Clone method, do not call the Clone method unless it is really necessary.2.java in the clone two
Online Search:Clone () is the protected method of the Java.lang.Object class, implementing the Clone method:1) The class itself needs to implement the Cloneable interface2) to override the Clone () method, it is best to set the modifier modifier to public so that it can be called across packages.Shallow copy and deep copy1. Shallow copy and deep copy concept⑴ Shallow copy (shallow
///
/// The baseobject class is an abstract class used for inheritance.
/// Each class inherited from this class automatically supports the clone method.
/// This class implements the icloneable interface, and each object inherited from this object will
/// Supports the icloneable interface.
///
Public abstract class baseobject: icloneable
{
///
/// Clone the object and return a reference to the
This article mainly introduces how to use the _ clone () method in PHP programming. the __clone () method is equivalent to a shortest copy, which is the basic knowledge in PHP beginners, you can refer to defining a _ clone () method in the object class to adjust the object cloning behavior. The code for this method will be executed during the Clone operation. In
Nine Chapters count judges Net-original websitehttp://www.jiuzhang.com/problem/61/TopicsA graph is given and the starting node of the graph is given, and the definition of the node of the graph is required to clone the graph and return the starting node of the clone graph.Online testhttp://www.lintcode.com/en/problem/clone-graph/AnswerThis type of cloning a graph
Turn from: 78793300Prototype modeIn C + +, to copy an object, you can implement a clone function in addition to customizing a copy constructor for object replication. This requires the use of a compiler implementation of a hidden copy constructor, such a practice, more worry.The rationale behind this is the C + + prototype (Prototype) pattern: Specifying the kind of objects created with the prototype instance, and creating new objects by copying them.
Reprint: https://www.cnblogs.com/zouhao/p/7278117.htmlA: In JavaScript, if the cloned object is a basic type, we can assign it directly:1 var sStr = "Kingwell"; 2 var cStr = sstr;3 alert (cStr);//output KINGWELL4 SSTR = "ABC"; 5 alert (CSTR);//output Kingwell;When you assign a value to another variable, the value of that variable is not affected when it is changed.Two: If it's not the basic type, it's all different:1 var aarr = [0,1,2,3];2 var m = aarrr;3 alert (m);//Output 1,2,34 aarr=[3,2,1,0]
Source Library rhel4.5:192.168.137.199 Global_name=wending. LK oracle_sid=wending
Clone Library rhel4.5:192.168.137.200 GLOBAL_NAME=STRM. LK ORACLE_SID=STRM
1. Full Backup Source Library
$ Sqlplus '/as sysdba '
Note the SCN before the backup, and the time of the regulation is back to this point.
Sql> Select Dbms_flashback. Get_system_change_number from dual;
Get_system_change_number
------------------------
181557
Sql> exit
$ mkdir-p/orahome
Duplicate of reference type in heap and use the clone interface ICloneable to fix itNavigationIn-depth illustration C # Heap and Stack C # Heap (ing) VS Stack (ing) Section 1 Understanding Heap and Stack depth diagram C # Heap and Stack C # Heap (ing) VS Stack (ing) Section 2 basic working principles of Stack a simple illustration C # Stack and Stack C # Heap (ing) VS Stack (ing) Section 3 Stack and Stack, in-depth illustration of value type and refer
This article mainly introduces how to use the _ clone () method in PHP programming. The __clone () method is equivalent to a shortest copy, which is the basic knowledge in PHP beginners, for more information, see
This article mainly introduces how to use the _ clone () method in PHP programming. The __clone () method is equivalent to a shortest copy, which is the basic knowledge in PHP beginners, for more i
Java Clone and JavaClone
For a common object, if you implement the Cloneable interface and override the clone method, you can implement deep copy of the object.
However, for a List or Set, both the clone method of the Set and the clone method of the object are shortest copies, that is, the pointer reference, to impleme
/*
+ ------------------------------------------------------------------------------- +
| = Read this article for Haohappy | = Notes in the Classes and Objects chapter
| = Translation-oriented + personal experiences
| = Do not repost it to avoid unnecessary troubles. Thank you.
| = Thank you for your criticism and hope to make progress together with all PHP fans!
| = PHP5 site: http://blog.csdn.net/haohappy2004
+ ------------------------------------------------------------------------------- +
*/
Section 5-clone-ClassesandObjectsinPHP5 [5]. Section 5-clone an object model in PHP5 to call an object through reference, but sometimes you may want to create a copy of the object and expect that the change of the original object will not affect the copy. in this case, section 5-clone
The object model in PHP5 calls an object through reference, but sometimes you m
/* + Tips + | this document is Haohappy-read | notes in the ClassesandObjects chapter | translation-oriented + personal experiences | do not repost the notes to avoid unnecessary troubles. thank you |
/* + --------------------------------------------------------------------------------- + | = This article is Haohappy read
> | = Notes in the middle Classes and Objects chapter | = Translation + personal experience | = do not repost to avoid unnecessary troubles, thank you | = Welcome to critic
How to explain the two $ this in the _ clone () method of php? What are their meanings? {Code...}: how does one explain the two $ this in the _ clone () method of php? What are their meanings?
Class Person {// The following is the member attribute var $ name of a Person; // The name of a Person var $ sex; // gender var $ age of a Person; // person's age // define a constructor parameter to assign values to
Section 5 clone [5]. The object model in PHP5 calls an object through reference, but sometimes you may want to create a copy of the object and expect that the change of the original object will not affect the copy. for this purpose, the object model in PHP 5 calls an object through reference, but sometimes you may want to create a copy of the object and expect that the change of the original object will not affect the copy. for this purpose, PHP defin
/* + --------------------------------------------------------------------------------- + | = This article is Haohappy read
> | = Notes in the middle Classes and Objects chapter | = translation + personal experience | = Do not repost to avoid unnecessary troubles, thank you | = welcome to criticize and correct, hope to make progress together with all PHP enthusiasts! + Example + */section 5-clone the object model in PHP5 to call the object through
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.