Is java front-end or back-end?

Is java front-end or back-end? Which one will be better developed in the future?

Is java front-end or back-end? This question is asked In fact, it does not have any technical content, but because there are still many friends who are not very familiar with Java and do not understand the knowledge of front-end and back-end in Java, I am here to talk to you about this issue today. .

Java itself involves far more back-end knowledge than front-end. Of course, java also has front-end knowledge, just java web, but I personally feel that if you want to learn java, the back-end is better.

The first backend is like a big tree. Along one branch, you can slowly understand the whole tree of enterprise application development technology, and your technical level will become deeper and deeper.

The second front-end has always been the interface, and the technical depth is not enough. As you gain more experience, your technical level will become more and more proficient. Therefore, the technical difference between front-end and back-end is that one tends to be proficient and the other tends to be in-depth.

In terms of income, the back-end is higher than the front-end. Of course, from a personal point of view, I think both the front and back ends must be familiar, and it is better to focus on the back end.

Which is better, front-end or back-end?

Web front-end:

1) Proficient in HTML and able to write HTML structures with reasonable semantics, clear structure, and easy maintenance.

2) Proficient in CSS, able to restore visual design, and compatible with mainstream browsers recognized by the industry.

3) Be familiar with Java, understand the basic content of ECMA, master 1~2 js frameworks, such as JQuery

4) Have a clear understanding of common browser compatibility issues and have reliable solution.

5) Have certain requirements for performance, understand Yahoo's performance optimization suggestions, and be able to effectively implement them in the project.

6)......

Web backend:

1) Proficient in jsp, servlet, java beans, JMS, EJB, Jdbc, Flex development, or very familiar with related tools, class libraries and frameworks, such as Velocity, Spring, Hibernate, iBatis, OSGI, etc., have a deep understanding of Web development models

2) Practice using Commonly used database systems such as oracle, sqlserver, mysql, etc., have strong design capabilities for databases

3) Familiar with maven project configuration management tools, familiar with tomcat, jboss and other application servers, and at the same time, familiar with high-concurrency processing situations Candidates with relevant experience in load tuning will be given priority

4) Proficient in object-oriented analysis and design technology, including design patterns, UML modeling, etc.

5) Familiar with network programming, with experience in design and development Experience and ability in external API interfaces, as well as cross-platform API specification design and efficient API call design capabilities

The growing trend is that both View and Controller in MVC architecture will be completed by front-end engineers. Because it is the Controller that calls the page layout. The emergence of more and more One Page Websites also requires front-end engineers to fully master the business logic in order to create correct dynamic pages. Leave the Model to the back-end engineer, because the Model is responsible for ensuring the accuracy and performance of the data. As the amount of data and basic equipment vary, different designs are required. This aspect is invisible to the front-end and users. On the Controller side, front-end engineers need to know how the Model designed by the back-end is used.

In order to make the Model step more decoupled and make the work of front-end engineers and back-end engineers independent of each other, the MVVM architecture was created. That is to say, front-end engineers design the page and design the View Model in their eyes. It is the VM in MVVM. The Model designed by the back-end engineer has a certain mapping relationship with the VM. This way both parties work completely independently.

So the front-end not only needs to know design class code and js, but also needs to know certain server-side codes, such as PHP, java and c#. The technical background of back-end engineers lies more in algorithms, middleware architecture, databases, network communications, and operating systems.

Recommended tutorial: "java tutorial"

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