What technologies do java programmers need to master to get hired? Let me talk about six suggestions for learning java well

A friend asked me, as a junior Java programmer, what skills do I need to master to get hired? I think this question is very representative and reflects the confusion of many novices: so many technologies, which one should I learn? Which one should I learn first and which one should I learn later? What is my learning path? So, let's talk about this topic today.

First of all, we have to break down the positions in the IT industry, because different positions have very different types of skills required. IT can be divided into two categories: hardware and software. Today we only talk about software, that is, software development, which is generally referred to as a programmer, but actually a software development engineer. The software can be divided further down, and the big ones can be divided into two parts: game development and application development. Because game development is actually considered an application, but it is too special, so I will count it out and talk about it alone. Application development accounts for the vast majority. We say that in terms of the number of jobs provided, application development now accounts for the vast majority, and the number of game development is far behind the number of application development.

Application development can be divided into front-end and back-end. Then I want to provide you with a brand new idea, which is to distinguish from the perspective of software architecture. What is software architecture? Because the difference in a software architecture basically determines the difference in the core technology you focus on. What ultimately determines your learning path is actually the software you make and which architecture type it belongs to. The architecture type we are talking about here actually refers to the two types of BS architecture and CS architecture.

The BS architecture refers to the browser service, browser server architecture. The CS architecture refers to the client server architecture. Generally speaking, commercial applications can be roughly divided into these two architectures. If you want to develop BS architecture software, you must first get started with HTML, CSS and Javascript, or JS for short. Of course there is also H5, but H5 is the fifth generation of HTML, which is the latest generation of HTML, so I won't just talk about it. What to learn next depends on what you want to do. If you want to do the front-end, you have to learn the front-end framework. I recommend everyone to learn Vue. If your future job is to develop BS architecture software, then you have to learn dynamic page languages, such as PHP, GSP, and ASP.NET. Finally, you have to learn database technology, such as MySQL, Oracle and so on.

The above is a very brief BS architecture learning route, for reference only.

Next we look at the CS architecture. Unlike the BS architecture, the CS architecture is more complex and involves a wider range of technologies. If you want to engage in software development with CS architecture, then you need to have the following skills:

1. Programming language: Generally speaking, you need to master at least one programming language, such as Java, C++, C#, Python, etc. Of course, this is just the introductory content, and you still need to learn the advanced features and applications of these languages ​​in depth.
2. Network protocol: In the CS architecture, network communication is a very important part. Therefore, you need to have basic knowledge of network protocols, such as TCP/IP protocol, HTTP protocol, WebSocket protocol and so on.
3. Database: In the CS architecture, you need to master the basic operation and design of the database, such as SQL language, MySQL database, Oracle database, etc.
4. Operating system: You need to know the basics of the operating system, such as Linux, Windows, etc.
5. Web framework: If you want to do web development, then you need to learn some web frameworks, such as Spring, Django, etc.
6. Distributed system: In CS architecture, distributed system is very important, you need to master some basic concepts and technologies of distributed system, such as Zookeeper, Dubbo, etc.

The above are some introductory skills of CS architecture. Of course, if you want to do more advanced CS architecture development, you still need to learn more knowledge and technology.

Java is a relatively popular programming language and one of the mainstream development languages ​​of many companies. Compared to other programming languages, Java's syntax is relatively simple and the learning curve is not steep. However, it takes a lot of time and effort to really master Java.

Here are some suggestions for learning Java:

1. Learning the basics of Java: Mastering the basics of Java is the first step in learning Java, including Java language features, data types, operators, control statements, arrays, and more.
2. Writing simple programs: Writing simple programs will help you understand the basics of Java, such as Hello World programs, calculator programs, and more.
3. Learn Object-Oriented Programming (OOP): Java is an object-oriented programming language, so it is very important to have a basic knowledge of OOP.
4. Learning the Java class library: The Java class library is the core of Java programming. The Java class library provides many practical tools and functions that can help you write Java programs more efficiently.
5. Hands-on projects: In the process of learning Java, hands-on projects are very important. You can participate in some open source projects, or develop some small projects yourself, which can help you understand Java programming more deeply.
6. Take courses and training: Java is a relatively popular programming language, and there are many Java courses and trainings on the market that can help you learn Java more effectively.

Java is a relatively easy-to-use programming language, but if you want to learn Java well, you need to keep learning and practicing. I hope these suggestions can help you, and I wish you a happy study!

To sum up, if you want to be a programmer, you need to master a lot of skills, and the learning route will vary with different architectures and fields. Therefore, I suggest that in the process of learning, everyone should pay attention to the learning of basic knowledge and solid practice, and constantly improve their skills and abilities. I hope everyone can become an excellent programmer!