protocol oriented programming

: Note The Serialversionuid inconsistency throws a serialized run-time exception.11. The "forced" construction method prohibits any business logic from being added, and if there is initialization logic, put it in the Init method.12. The "force" Pojo class must write the ToString method. When using the IDE's tools:source> generate ToString, if you inherit another Pojo class, be careful to add super.tostring to the front. Description: When the method execution throws an exception, you can directly

The most important concept in network programming is the connection orientation (connection-oriented) and the non-connected (connectionless) protocol. Though the essence. The difference between the two is not difficult to understand, programming people, but it is a very easy to confuse the problem.The problem is somewh

have to decide your parent in the first, not the late. If the parent class has a variable that stores the type, you have no choice but to accept them all. And to initialize them, be careful not to break the constants of the parent class. You need to choose whether and how to overload the parent-class method in a workable way. 3. The abstraction of a class causes the loss of relational information between types (Lost type relationship) When you don't understand any of the information, you must a

.score = =S2.score}funcBool {returnS1.score S2.score}let Tian= Student (Name:"Tian", Score: -) Let a= Student (Name:"Alice", Score: the) Let B= Student (Name:"Bob", Score: the) Let C= Student (Name:"Karl", Score: the) Let students=[a,b,c,tian]//error reason is because comparable this protocol in the implementation of their own call themselves at this time this protocol can not be used as a type in this case

With open (' path ', ' R ', encoding= ' utf-8 ') as F:code blockThis is called the on-line management protocol, the WITH statement, in order for an object to be compatible with the WITH statement, the __enter__ and __exit__ methods must be declared in the class of the object.Context Management Protocol:Class Open:def __init__ (self,name):Self.name=namedef __enter__ (self):Print (' A With statement appears, the object's __enter__ is triggered, the retu

instead} definition of instance method in Protocol Protocol RandomNumberGenerator {Func random ()-> Double}The RandomNumberGenerator protocol does not care how the return value is generated, it only emphasizes the creation of a double type value After introducing the definition of the methods and attributes of the

In the object-oriented programming of PHP, you will always encounter Class test{public static function test () { self::func (); Static::func (); } public static function Func () {}} But do you know the difference between self and static? In fact, the difference is very simple, just need to write a few demo can understand: Demo for self: Class car{public static function model () { self::getmodel ();}

SSCOP Service specific Connection oriented Protocol business-specific connection-oriented protocolThe function of SSCOP is to provide service to its upper SSCF module, to establish and release signaling connection for upper layer signaling user, and to provide a confirmed and non-verifiable message data transmission on the connection to reliably exchange signalin

Object-oriented consists of 3 parts: Object oriented Analysis,ooa, object-oriented design (objects oriented Design,ood), and object-oriented programming (objects oriented

connection, but the other side can still read the data from the network stack. If a connection-oriented protocol does not support quiet shutdown, the connection is immediately interrupted and data is lost, as long as one side shuts down the communication, and the receiver cannot read the data. For TCP, the connection can be completely disconnected only if both sides of the connection perform one shutdown.

Interface-oriented representation subclasses are implementation interfaces or abstract classes, and implementation-oriented representations inherit common classes. Obviously the former coupling is relatively low, because the modification code is relatively low, because the interface and abstract class itself some methods do not do things, but subclasses to achieve. Design principles: Identify the parts of t

Speaking of interface-oriented programming. I heard a blur.Problem: Now there are interface A and the B class that inherits a interface, thenA s=new B;What does that mean???Then you can adjust the method implemented in class B with the method of a s.print.And the teacher said that interface-oriented programming is to r

What is itBefore describing the difference and pros and cons, briefly introduce both.Functional programming, as the name suggests, this kind of programming is the function of thinking as the core, in this thinking angle to think about the problem. The most important foundation of this programming is the lambda calculus, which accepts functions as inputs and outpu

Many JavaScript-oriented programming methods are popular on the market, many of which are problematic. Here's a summary of the most correct JavaScript object-oriented programming patterns. For class Special inheriting from class Common inheriting from class Super, the creation of a Special object, in detail, should go

In order to have a good interactive experience, I believe that everyone in the treatment of ScrollView no data when the prompt page will use some third-party to customize, the most typical is the use of dznemptydataset. But it is not so good to write a bunch of code related to Dznemptydatasetdelegate,dznemptydatasetsource in every interface, and that's usually the way to avoid it. And Swift, in addition to object-oriented

A simple way to understand the object-oriented programming of PHP, PHP object-oriented programming Unlike most object-oriented programming languages, PHP supports both process-oriented

Structured and object-oriented programming, Object-Oriented ProgrammingBytes The software development method refers to a variety of software development strategies proposed based on the characteristics of software development to design and implement high-quality software that meets user needs within the project investment scale and time limit. With the unbalanced

function of things that should be described in Java?The basic data of things, generally in life is a data, this data can be used to learn a variable to represent.The behavior/function/action of a thing can be described using a function in Java.Use the class in Java to describe the thing that is currently being parsed: the name of the thing, the class name in JavaClass Person{Double height; HeightDouble weight; Weightint age; Agechar sex; GenderString name; NameDescribe the common behavior of su

Spring entry (4) [Aspect-Oriented Programming], spring entry-oriented Aspect-Oriented Operations such as logs and transactions are often used in the development process. If these operations need to be written in the Business Code, it will be quite troublesome. In this case, we will use Aspect-

It was not clear that I had seen this problem last night. has been used in Java and Android development, the recent maintenance of an old project, is developed with VB, code more than 10 years, contact for a period of time. The process-oriented and object-oriented aspects are involved, here this summary (some are collected online)Own understanding of:Process-oriented