At what level can I learn Java by myself before I can work?

To find a Java development job, you must be proficient in: Javase, JavaScript, jQuery, java framework related knowledge (learn at least three frameworks), Mysql, Javaweb related knowledge (html, css, jsp, Servlet, etc. ) and other technologies, and can be applied to projects.

What you need to know to find a Java programming job is as follows:

First is Javase as Java I won’t go into details about the most basic learning content.

The next step is to master the basic principles of JavaScript, because you must learn JavaScript to do Java programming and development. JavaScript is used a lot, but now many companies do not need to write native JavaScript, but if you want to become a powerful Java Developers, JavaScript must be very comfortable from theory to practical operation.

Now companies must be able to use frameworks, so the replacement for JavaScript is jQuery. This is a very simple framework. When you learn jQuery, you will find it much easier to use than JavaScript. So jQuery is something you must master.

You must also learn some frameworks, such as SpringMVC, Spring, Mybatis, Struts, Hibernate, etc. These will be difficult to understand, but companies need to require you to know the framework. Currently, domestic companies use SSH. Many, it is recommended to learn at least three frameworks, which are the basic requirements for finding a job.

Database technology is a skill that Java workers must master. Mysql is commonly used.

The content of Javaweb also includes html, css, jsp, Servlet and other technologies. These are all things that must be mastered when looking for Java development.

The above are the rough technologies that must be mastered. If you want to find a job in Java development, the above-mentioned related technologies must be mastered proficiently and applied to projects.

So how should those who want to learn Java development by themselves master the above related technologies?

1: First of all, there is a very common situation. For people who want to learn Java development by themselves, most of them are very blind and don’t know how to start. Many people I found some videos on the Internet, and then watched them like crazy. I quickly finished learning a piece of content. What they understood was that they had finished watching the video, but when I asked them to do things, they couldn't make them. My understanding was finished. It means that you can write things by yourself, so for beginners, you must not be blind and have your own plan, otherwise it will be a waste of time and work in vain.

2: Since you are learning Java development expertise, my personal suggestion is that you must have someone who can guide you. You cannot rely on yourself to do everything behind closed doors. Such behavior is not smart. Get to know someone in this field. For talents, ask people questions from time to time, otherwise you may find that a small problem can bother you for a day, and in the end you still don’t know the reason.

3: Learning Java development technology cannot be treated the same as learning mathematics and Chinese. It is not easy to remember the code if you are new to it. Therefore, to master the above technologies, you also need to know what Java development technologies are involved." pit". The aspect of learning methods is particularly important. How can you remember what you learned before and avoid forgetting it after learning? This question is worth thinking about before you learn.

Four: Based on years of study, you must develop good study habits. Let’s talk about myself! I like to organize the problems I have encountered in my computer diary, and then I will collect blog-related Java technology articles and some websites that I think are more useful, which I can use in the future. This is my personal Learn habits, believe me, if you want to go further, you must develop habits.

Finally, I will give you some detailed learning arrangements:

Java basics: Java basic syntax, arrays, classes and objects, inheritance and polymorphism, exceptions, and paradigms , collections, streams and files, reflection, enumerations, autoboxing and annotations.

Database: mysql, oracle

Javaweb: HTML and CSS web development basics, JavaScript scripting language, building a development environment, JSP basic syntax, JSP built-in objects, JavaBean technology, Servlet technology, Ajax technology

Framework: Struts2, Hibernate, Spring, SpringMVC, mybatis

Recommended tutorial: "java tutorial"

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