Java course notes sorting
Lesson 1 | talk about your understanding of the Java platform Java itself is an object-oriented language. There are two remarkable features. One is the so-called "Write once, run anywhere", which can easily obtain cross platform capabilities; Another is garbage collection (GC). Java recycles anUTF-8...
Posted by jonniejoejonson on Fri, 22 Oct 2021 07:30:47 +0530
Spring MVC file upload and exception handling
Spring MVC file upload 1 - spring MVC request - file upload - client form implementation (application) The file upload client form needs to meet the following requirements: Form item type = "file" The form is submitted by post The enctype attribute of the form is a multi part form, and enctype UTF-8...
Posted by xsist10 on Fri, 22 Oct 2021 09:15:24 +0530
goroutine and pipeline channel applications of Golang concurrent basic processes
Coroutine: it can be understood as a lightweight thread Independent stack spaceShared program heap spaceScheduling is controlled by usersIn logical state, the resource consumption is relatively small Golang's collaborative process mechanism is an important feature, which can easily open tens ofUTF-8...
Posted by bobbfwed on Fri, 22 Oct 2021 09:27:47 +0530
[C/C + + backend development learning] 5 design pattern: Creation
Design pattern definition Design pattern refers to a proven solution to specific problems that occur repeatedly in a specific environment in software development How to learn design patterns? Find the stable point and change point and isolate the change point (decoupling - limit the coupling tUTF-8...
Posted by plinares on Fri, 22 Oct 2021 16:39:04 +0530
Breakpoint debugging and its application
Example01: Actual demand: The new programmer looks for errors, and the veteran tells him that breakpoints can be used for debugging Using breakpoint debugging, you can check the execution process of the source code step by step and find the error. During debugging, it is in running state and exUTF-8...
Posted by manixrock on Fri, 22 Oct 2021 17:15:10 +0530
c + + classes and objects: static, friend, new and delete, initialization list, explicit keyword, internal class
Initialization list: class a{ public: a(int n,int v):_data(n),_b(v){ _data=n; _b=v; } private: int _data; int _b; }; Initialization member list can only be written after constructor The declaration order of a member variable in a class is its initialization order in the initialization list, regUTF-8...
Posted by immot on Fri, 22 Oct 2021 18:48:28 +0530
007 - detailed explanation of JAVA polymorphism (virtual and non virtual methods)
Prerequisites for forming polymorphism: 1. Chinese extensions programmer 2. There is a way to rewrite Reference problem of polymorphic upward transformation method Upward Transformation: assign the subclass object to the reference of the parent class Parent class Subclass object Programmer pro UTF-8...
Posted by lady_bug on Fri, 22 Oct 2021 20:44:21 +0530
Concise summary: python iterable, iterator, generator
Go straight ahead: I read blogs on various websites. They are messy and just one picture is OK: Summary: Simple point Iterator Protocol: If a class implements u Iter()u And u Next()u Method, then this class implements the iterator protocol. iterable: iterable object, implements u Iter()u ClasseUTF-8...
Posted by hogleg on Fri, 22 Oct 2021 23:02:13 +0530
C language project source code 2021 latest!
1, C language source code C language is a general computer programming language, which is widely used in Bottom development. The design goal of C language is to provide a programming language that can compile and process low-level memory in a simple way, generate a small amount of machine code UTF-8...
Posted by ds111 on Sat, 23 Oct 2021 05:29:51 +0530
C + + classes and objects: C + + object model and this pointer
Member variables and member functions are stored separately: In C + +, member variables and member functions in a class are stored separately;Only non static member variables belong to the object of the class; Note: the memory space occupied by empty objects is: 1; class Person { public: PersonUTF-8...
Posted by Iank1968 on Sat, 23 Oct 2021 07:55:21 +0530