Is there any opportunity for non-computer majors to switch to Java? Many people don’t know these secrets


In fact, since 2019, there are data showing that more and more people are learning Java, and it is expected that it will reach a peak in 2020. It is helpless to be severely affected by the epidemic in 2020, so this year's various industries are not prosperous, but the Internet industry is relatively the least affected.

However, as the epidemic has improved, people from all walks of life have begun to plan their careers. In fact, more and more people want to switch to programmers. The first choice is Java. After all, Java’s average salary is the highest. The future of Java can be seen, so switching to Java will naturally be greatly supported.

Can you succeed if you switch to Java on the way?

Many people who are just starting to learn Java or have the idea to switch to Java will be confused and unsure whether they will succeed. Frankly speaking, whether or not learning Java with zero foundation can be successful does not give a completely accurate answer, because it depends on the actual situation. Most of the people who learn Java halfway are not from computer majors. For those with zero foundation, if they choose self-study, I would say that the proportion of success is very small, and 5 out of 100 people can learn to be successful. Already very good. However, if someone takes them to study together, they will avoid a lot of detours, and success will be easier, and they will not crash around like headless flies.

So you have to ask me, can I succeed in switching to Java? There is no absolute conclusion, but as far as I am concerned, success is inevitable, because there are plans, methods, and someone to take.

How can I compete with the class students when I switch to Java in the middle of the job?  Many people don’t know these cheats


Essential factors for learning Java

I have the idea of ​​learning Java, so how do I realize it? How can we learn Java well? The necessary factors for learning Java, I think the following points are indispensable:

1. Independent learning ability

First of all, you have to have the ability to learn independently. As the saying goes, "Adou can't help, but the mud can't support the wall." If you don't move by yourself, no one can help you. One thing wants to be successful. , Initiative is very important.

2. The master leads the door

In the early stage of introductory stage, it is very important to find a master to take you. In the early stage of learning Java, some experienced and technical people will take you to save yourself a lot of detours.

3. Plan a study route and learn the latest

To learn Java well, you must have your own learning plan, how to start, how to go deeper, and it is best to follow a road map step by step, so that it is easy to avoid detours and reduce mistakes. In addition, we should also pay attention to the technical information of Java in real time, and learn the latest.

4. A firm sense of purpose and a persistent attitude

What you do, attitude is the most important thing. Once you decide to switch to learning Java, you must strengthen your sense of purpose and maintain a persistent attitude. For example, I will set myself a small goal and enter Ali! Haha, just a little joke, but if I have time, I will force myself to work hard to get this opportunity.

How can I learn to compete with class students?

1. Determine your own learning route

No matter what we do, or what skills we learn, we must have a plan at the beginning, so we must determine our own learning route in advance. This is very important to make our thinking clearer when we learn.

How can I compete with the class students when I switch to Java in the middle of the job?  Many people don’t know these cheats

2. Lay a good foundation and learn the framework

It is undeniable that, to a certain extent, college students do have an advantage over those with zero foundations. However, although college students have relevant knowledge and skills during their stay at school, they have learned relatively shallow things, relatively speaking Not deep enough, and college students lack practical experience, so as a zero-based, the first key is to lay a good foundation, wait for the foundation to be laid, and then learn the framework-related content, and then find a satisfactory job is basically a breeze .

How can I compete with the class students when I switch to Java in the middle of the job?  Many people don’t know these cheats

About basic knowledge learning:

Learning basic knowledge is to give you a preliminary understanding of the Java language. In fact, the basic knowledge of any language is similar, including basic data types and basic object-oriented knowledge. Object-oriented is the most important thing. Object-oriented knowledge will grow better in subsequent development.

Basic knowledge includes (mainly refer to "Java Core Technology Volume"):

  1. Basic program structure: basic variable types, operators, strings, process control, arrays
  2. Classes and objects: class definition and use, static properties and methods, inheritance, package management, enumeration, reflection
  3. Interface and abstract class: interface definition and realization, abstract class definition and realization
  4. Generics: generic classes, generic methods
  5. Collection: collection interface, list, map, tree, sort and search
  6. Exceptions and debugging: built-in exceptions, declared exceptions, custom exceptions, caught exceptions, logs
  7. Multithreading: multithreading concept, using threads, synchronization

How can I compete with the class students when I switch to Java in the middle of the job?  Many people don’t know these cheats

Learn about Spring, etc.:

Once you have a certain basic knowledge, let’s go straight to the topic. In this field, Spring is the tool to learn. The following is the knowledge you need to master when writing Spring. There may be more than that, and there may be omissions, which can be added later.

  1. Maven: Maven and package management, POM files, life cycle, etc.
  2. Spring Core: dependency injection and inversion of control, Spring overview, Spring container and life cycle, automatic assembly, annotation assembly, aspect programming (AOP)
  3. HTTP protocol
  4. JSON knowledge
  5. Servlet concept
  6. Spring MVC concept: configure Spring MVC, parameter transfer, implement REST, permission control, etc.
  7. RPC framework
  8. RESTFul

How can I compete with the class students when I switch to Java in the middle of the job?  Many people don’t know these cheats

3. Find a master, follow the video, and learn systematically

When it comes to self-study, many people may be afraid that they can’t stick to it. In fact, the difficulty of self-study is not that it is difficult to persevere. What I am afraid of is that what I have learned is scattered and fragmented. It is difficult to master a technology without systematic learning. The biggest drawback is Affect your own job, and you will collapse at the first interview. The best solution is: find a reliable master, follow the video, and start systematic learning from scratch is the most effective and correct method.

How can I compete with the class students when I switch to Java in the middle of the job?  Many people don’t know these cheats


to sum up

The above content is all my suggestions for Java zero-based beginners. I hope everyone can treat this matter correctly, and I hope all friends can learn something. Finally, you are welcome to become a programmer, and I wish you success in your work and realize your dreams!

Note: The Java zero-based learning materials shown in the screenshots in the article can be shared with everyone for free , including mind maps, learning videos, documentation, etc. Friends in need, as long as you support my article:

——Three links + comment theory, the password of the private message package download method is "transfer" or simply scan the following .

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