What is Shadow clone.
The following example contains three class Unclonea,cloneb,clonemain. The Cloneb class contains a Unclonea instance and an int type variable, and overloads the Clone () method. The Clonemain class Initializes an instance of the
SummaryShallow cloning and deep cloning is a low-difficulty factor for javase, but should not be underestimated.Suppose a scenario: for a list, there is no direct manipulation of it in the code, but the attributes of the elements inside are changed,
Let me first describe the problem:I wrote a function p in the action (struts2.x)-A, with one of the current user's identity F = = 1 o'clock need to go this function, and this function for some reason has penetrated into some other method.By the way,
I. The concept of shallow cloning and deep cloning: 1). Shallow clone: Also known as shallow copy, all variables of the copied object contain the same value as the original object, and all references to other objects still point to the original
The following text turns from: Orange garden http://www.blogjava.net/orangelizq/archive/2007/10/17/153573.htmlNow clone is not a fresh word, along with the "Dolly" the word is really "fire" over a while, in Java also has such a concept, it can make
Example of cloneNode () usage of DOM node deep clone function
This article mainly introduces the usage of the DOM node deep clone function cloneNode (). The instance analyzes the operation skills of the cloneNode () function deep copy, which has
In Java, if a Class A needs to implement deep clone, simply perform the following two points at the same time:
1. Class A must implement the serializable interface. For example:
class A implements serializable
{
...
}
2.
Content transferred from: http://www.blogjava.net/orangelizq/archive/2007/10/17/153573.htmlNow clone is not a fresh word, along with the "Dolly" the word is really "fire" over a while, in Java also has such a concept, it can make it very convenient
Original: Java object any deep clone clone tool class shareSource code: Http://www.zuidaima.com/share/1550463408114688.htmJava object any deep clone clone tool class sharePackage com.zuidaima.n_app.util; Import Java.lang.reflect.Constructor;
1. What is the prototype model
The prototype pattern belongs to the creation mode of the object. The prototype pattern allows you to create a new instance by copying an existing instance.The point of this pattern is that the client's code can
This article mainly introduces the usage of the DOM node deep clone function cloneNode (), and analyzes the operation skills of the cloneNode () function deep replication, which has some reference value, for more information about how to use the DOM
A shallow copy (The Clone () method in the object class) refers to a copy of a variable for the base data type when the object is copied, whereas a variable for a reference type simply copies the reference.A deep copy (or Deep clone) is a copy of
DOM node deep clone function cloneNode () usage instance, domclonenode
This example describes how to use the DOM node deep clone function cloneNode. Share it with you for your reference.
The specific implementation method is as follows:Copy
That there's some good in the world, Mr Frodo. And it ' s worth fighting for.Prototype mode (prototype), which specifies the kind of object created with the prototype instance, and creates a new object by copying the prototypes.As for Object.clone ()
Copying is getting a copyCloning is copying a copy of an object. However, there may be basic data Types in an object, such as: Int,long,float, etc., and also contain non-basic data types such as (arrays, collections, etc.)The value of the base type
First look at an example:1 var student = {2 name: "Yxz",3 age:254} 5 var newstudent = student; 6 newstudent.sex = "male"; 7 // {name: "Yxz", Age:25,sex: "Male"}Thus, when passing an object through a simple pass assignment to a new variable,
Sometimes, we need to replicate an object, such as the following requirements:1. Using recursion to implement a deep clone, you can copy a target object and return a full copy2. The copied object type is limited to numbers, strings, booleans, dates,
Using System; using System. collections. generic; using System. linq; using System. text; using System. IO; using System. runtime. serialization. formatters. binary; namespace CloneClass {class Program {static void Main (string [] args) {Results set1
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