What are the knowledge points that need to be mastered in the introductory stage of learning Java in 2022?

Jun 14, 2022
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What are the knowledge points that need to be mastered in the introductory stage of learning Java in 2022? Let's take a look with Qianfeng Guangzhou Xiaobian below!

  1. Grammar

It is familiar. When writing code, the editor of the IDE should be able to know what kind of syntax error is based on the error message and know any corrections when reporting an error to a certain line.

  1. Command

Familiar with some common commands and common options brought by JDK. Commands need to be familiar at least: appletviewer, HtmlConverter, jar, Java, Javac, Javadoc, Javap, Javaw, native2ascii, serialver, if you have not used all these commands, then you are familiar with Java Actually still don't know.

  1. Tools

Proficiency in at least one IDE development tool, such as Eclipse, Netbeans, JBuilder, Jdeveloper, IDEA, JCreator or Workshop, including project management, setting of common options, installation and configuration of plug-ins, and debugging.

4、API

The core API of Java is very large, but there are some contents that must be familiar with, otherwise it is impossible to use Java proficiently.

Soft Power for Getting Started with Java:

  1. Cultivate Java programming thinking

Java programming thinking requires three stages, the fundamental abstract concept of Java language, involving two important main lines of class and interface; Java programming process; various characteristics of Java programming, including encapsulation, inheritance, polymorphism, etc.

  1. Programming form

If a beginner of Java language wants to grow up quickly, he must pay attention to the mastery of programming forms. Having some classic Java programming forms can help beginners to build stable and usable programs to a great extent. The Java programming form is relatively mature now, and there are a lot of materials that can be referenced in the process of learning.

  1. Functional module development

Can complete some basic function module development. Completing the development of functional modules according to Java is an important sign for beginners to get started. In order to have the ability to develop functional modules, it is necessary to master the common knowledge of Java development structure and database. For beginners, we can focus on the Spring series structure at present. For example, SpringBoot is relatively simple and easy to use, and database knowledge can focus on the learning of Sql language.

Beginners can master the above knowledge points, the next stage can be further advanced!

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