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reference material STL Usage Summary Basic concepts of STL Basic components nameexplainContainerHolds an object that contains a set of elementsiteratorIterators are generalized pointers that provide access to each element in a containerFunction objectObjects that behave like functions, header files < functional >AlgorithmsWidely us ...

The previous section talked about the simple communication between the server and client of java socket, and learned about the communication mechanism of socket. See the following for details: java socket for communication programming Today, let's go further. There is a problem in the previous example, that is, sending messages only once ends. ...

Loading is the first stage of the whole class loading. In the loading stage, the jvm obtains the binary byte stream defining this class through the fully qualified name of the class. The linking work can start before the loading stage is completely completed java doc of ClassLoaderThe three stages of linking verification, preparation and parsin ...

Summary What is AOP AOP is the abbreviation of Aspect Oriented Programming, meaning: Face-Oriented Programming AOP was originally proposed by the organization of AOP Consortium, which specifies a set of specifications. spring introduces the idea of AOP into the framework, a technology for unified maintenance of programs through precompi ...

Sequence is a continuous memory space used to store multiple objects and to store a series of data. It is a data storage method. For example, a sequence of integers [10, 20, 30, 40] can be represented as follows: The sequence stores the address of the object in memory, not the value. a = [10, 20, 30, 40] is illustrated below: In Python, the ...

Reflection overview Reflection is that for any Class, you can directly get all the components of this Class "at run time". At runtime, you can directly get the Constructor object of this class: Constructor At runtime, you can directly get the member variable object of this class: Field At runtime, you can directly get the member ...

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Define a Class A in another class B, which class A is called internal class and B is called external class. The biggest feature of internal classes is that they can directly access private properties and reflect the inclusion relationship of classes. The essence of an inner class is a class. Basic syntax: class External class name { ...

Class variables and class methods The question is: there are a group of children playing with snowmen, and new children join from time to time. How do you know how many children are playing now? Use our existing technology to solve this problem. Package name: com haikang. static_. ChildGame. java Idea: Define a variable count in the main me ...

Before Django (3. ListView view of common views) In, we mentioned that there are five common views. To add such an operation, we will use the CreateView view. The table also mentioned that using CreateView requires both Model and Form. Let's take a look at Form first. There are two main types of forms: Form (data should be verified manually, ...