clone

PHP magic method _ clone _ toString (5) ,__ clone _ tostring. PHP magic method _ clone _ toString (5) ,__ clone _ tostring _ clone ()-This method is automatically loaded when the object is cloned _ toString () -automatically add the PHP magic method

The Clone method returns a copy of the instance object, typically X.clone ()! = X | | X.clone (). GetClass () = = X.getclass () | | X.clone (). Equals (x) is also true, but is not strictly required, and we can override this method by overriding

Http://www.cnblogs.com/xrq730/p/4858937.htmlWhy do you want to cloneWhy use cloning, this actually reflects a very real problem, if we have an object:PublicClass SimpleobjectImplementscloneable{Private String str; public Simpleobject ()

/*Creates and returns a copy of this object. The precise meaning of "copy" may depend on the class of the object. The general intent is that, for any object x, the expression: x.clone() != xwill be true, and that the expression: x.clone().getClass(

Clone me!    (1) In this example,   clone  ,  clone (True) the difference is that Clone (ture), in addition to cloning a collection, also clones the click Handle (2): clone   Clone  me! cannot continue clicking Clone. But clone

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

The origin of object replication Why do objects have the concept of "copy", which is closely related to the way objects are transmitted in PHP5, let's take a look at this simple piece of code PHP Code * /** * * TV class * */ * Class

Interview often encounter clone of the relevant knowledge, today is finally a more thorough understanding of the clone! The concept of clone in Java everyone should be familiar with, it can make it very convenient to "make" a copy of the object,

Public ATM database deepclone () {memorystream MS = new memorystream (); binaryformatter BF = new binaryformatter (); BF. serialize (MS, this); Ms. position = 0; return BF. deserialize (MS) as ATM database ;} C # supports two types: "value type"

Under what circumstances is a clone node used? We know that if you use the node directly during the DOM operation, the node will change with the operation. For example, the node is added to the new place, and the nodes in the original position are

This article describes Horizon View 7 publishing Win10 desktops via linked clones, for the environment preparation and instant cloning section, see the first two articles in this article (Environment preparation: http://jiangjianlong.blog.51cto.com/3

[Use rman to copy the Database 10 Gb -- clone-1], rman10g -- clone-1 Target Database: jadl0g Replicated result Database: d10g Note: *** the target database and clone result database are on the same host **** 1.

Application Analysis of PHP5 clone function. Undoubtedly, the launch of PHP5 has a profound significance for the development of network applications. This is not just because it is highly backward compatible with PHP4. Of course, PHP5 data packets

1. parameter transfer We all know that there are two methods for passing parameters: value transfer and reference transfer. In the object-oriented language of Java, how is it? According to the following procedure, we can draw a conclusion: Class OBJ

Programmers often misuse the copy constructors provided by each collection class as clones, List Set ArrayList HashSet or methods implemented by other collections. It should be remembered that the copy constructor for the Java collection only

1 protected native Object clone () throws Clonenotsupportedexception; 1. The method is modified by native keyword The native keyword in Java indicates that this method is a local method, "Java native description." Moreover, the native modified

Comparison of 1.clone () and "=" An assignment in a primitive type variable such as int a = 1;int B = A;a has the same value as B, changing the value of a or B does not affect each other. But between objects: Java.util.Date date1 = new

Deep understanding of DOM copy clone () and deep dom copy clone A clone node is a common DOM operation. jQuery provides a clone method to process dom cloning: The. clone () method deeply copies all matching element sets, including all matching

Now clone is no longer a new word. With the advent of "Dolly", it is indeed a "fire" for a while. This concept also exists in Java, it allows us to easily create a copy of an object. Let's take a look at how the clone mechanism works in Java? 1.

. Clone to implement the Cloneable interface;. depth clone and Shallow clone. Object. Clone ()1. Clone&copySuppose there is now an employee object, employee Tobby =new employee ("Cmtobby", 5000), passOften we will have such assignment employee