Personal programming time, though not short, but the overall project experience is still relatively deficient, and the individual's programming style has not formed, in order to make their own programming more pleasing (not sad) recently saw Ali
/ /c++ language static member data and static methods//The member variables between objects and objects are independent of each other. To share data, you need to use static members or static methods//#只要在类中声明静态成员变量, or you can allocate space for
In C + +, static members belong to the entire class rather than to an object, and the static member variable stores only one copy for all objects. So you can share it in all the objects. Using static member variables to implement data sharing
Article reprinted to CSDN community Luo Shenyang's Android tour, original address: http://blog.csdn.net/luoshengyang/article/details/8170307We studied in the front.SurfaceflingerThe implementation principle of the service. With this foundation, from
variablesTypes of variables:1. Member variables2. Local VariablesThe difference between a member variable and a local variable:Define the difference between locations1. The member variable is defined outside the method, within the class.2. Local
Singleton single-Case modeEnsure that a class has only one instance and provides a global access point to access it.Analytical:Singleton mode is actually a substitution strategy for global static variables, and the two functions of Singleton mode
This article is reproduced from here to write the link contentWrite a C + + class in a good waySuppose now we are going to implement a plural class complex, and explore good programming habits in the implementation of classes.Defensive statements in
Java entry note (3): initialization sequence, java Initialization
Initialization order rules
1. When a class object is instantiated, the member variables are first initialized before the constructor is called, regardless of the writing order. If no
How does static work?In the interview, it is easy to ask the basic questions, but also the most easily ignored by everyone.member variables of the static modifier classA variable appears in class, such as:Class Example{Public static int A;...};When
Inner class, a Class A is defined inside another class B, then we call Class A an inner class1. member Inner classExperimental research:Create Class Testpublic class Test {public static void Main (string[] args) {}} creates a class out representing
Java Concurrency structureOriginal link: http://gee.cs.oswego.edu/dl/cpj/mechanics.htmlContent
Thread
Synchronous
Monitor
ThreadA thread is a sequence of calls that are executed independently, and the threads of the same
1, if there is a parent class, first initialize the parent class, and then initialize the subclass2. Initialize static member variables, static code blocks (code enclosed by static {}), and initialize non-static member variables, non-static code
This pointer
The this pointer acts on the object that the member function is acting on.
A non-static member function can be used directly this to represent a pointer to the object that the function acts on.
Pointers cannot be used
18. "Recommended" final can declare classes, member variables, methods, and local variables, using the final keyword in the following cases:1) classes that are not allowed to be inherited, such as: String.2) do not allow modification of referenced
for Java variables to see every day, but sometimes people ask them the difference is sometimes not complete, so I found some information to organize ... Class variables are also called static variables, that is, a static variable is added to the
Introduction:The previous 2 chapters examine the caching of data at the presentation layer and cache layer. In the 56th chapter, we discuss the cache properties of ObjectDataSource set in the presentation layer to buffer the data. In the 57th
See a thread-telling story, it is very interesting, I admire the author can be so vivid to tell, click to jump to read this article: "I am a thread" Continue to summarize in my notes--Understanding Thread safety issues:Here are the examples of the
We have learned how SurfaceFlinger works. With this foundation, we can analyze the UI Implementation of the Android system on the Java layer from the beginning of this article. We know that among the four components of the Android Application, only
First, static member variables and static member functions1. Common member variables each object has its own copy, and the static member variable is one copy, shared for all objects2. Ordinary member functions must be specific to an object, whereas
We already know that the object is called using the address reference method. the object actually calls the same object, and sometimes a copy of the object needs to be created, when changing the original object, you do not want to affect the copy.
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