Shulou(Shulou.com)06/02 Report--

This article mainly explains "what are the four points you must know before learning Java". Friends who are interested may wish to have a look. The method introduced in this paper is simple, fast and practical. Next, let the editor take you to learn "what are the four points you must know before you learn Java?"

What is Java?

As an object-oriented programming language. The development of Java program has the properties of strong compatibility and easy to use. It implements the object-oriented theory and makes programmers more elegant in complex programming.

What can Java do?

1. Mobile APP (Android)

Almost all of our daily common APP applications are written by the Java development language. Moreover, the Android system is also built on the Java development virtual machine.

2. Large websites

Programs developed with Java have strong compatibility, so they are often used on large websites, covering areas such as health care, finance, national defense, people's livelihood and so on. The website backstage, including JD.com Taobao Meituan, is developed by Java.

3. Tool software

Most of the widely used software and development tools are developed in Java, such as QQ, Wechat, Eclipse, InetelliJ and Netbans IDE.

4. Big data's technology

At present, the popular big data technology is also using Java development, such as Apache Java-based development of HBase and Accumulo (open source), as well as ElasticSearch and other projects.

Third, how to study by yourself

1. Understand the basic grammar

To learn a language, the first thing to do is to learn its grammar. To really master the basics of Java, it is far from enough to watch basic grammar. In order to learn the basics of Java, we also need to watch videos or read books to learn.

2. Watch video

Video, you can go to the Internet to listen to Java basic courses, the advantage of watching video is that you can better receive knowledge, but also cost you more time, so sometimes you can also choose to read.

3. Read books

Read a book, for Xiaobai do not recommend too complex books, such as "Java programming ideas" this kind of book, beginners must not read. It is recommended that you only need to read the type of book "introduction to mastery of Java" first, because this part of the study is just the beginning of your later study, and you may have to go back and re-study it later.

4. Read the blog

Another way of learning is recommended here, which is more suitable for learning a certain technical point than books. You can easily find the relevant principles, implementation methods, and code examples of this knowledge point on the Internet. Some more basic articles can be viewed on websites such as Runoob. If you have a clear knowledge point that you want to learn, I believe the search engine will give you a better answer.

5. Code practice

In addition, general Java books or video courses will require you to complete some exercises, which you need to do on your computer using IDE. In IDE, you can be familiar with the use of the Java language, the implementation of basic code, try a variety of API, and test some language features, such as inheritance, encapsulation, polymorphism and so on.

IV. The Prospect of Java Development

What positions can be promoted for Java development programmers?

Technical Java development talents: junior engineer-> Intermediate engineer-> Senior engineer-> architect-> Technical Director-> CTO

Cross-Java development talents: junior engineer-> Intermediate engineer-> Project Manager-> Technical Director-> CTO

Mixed Java development talents: engineer-> product manager, designer, salesperson, operation, etc.

Managerial Java development talents: software engineer-> Project Leader-> Project Manager-> Project Director-> Technical Director-> CTO

At this point, I believe you have a deeper understanding of "what you must know before you learn Java". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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