Learning Java for four months is a bit difficult. Now the general study time is about half a year. Because Java has a wide range of applications and a lot of learning content, you can only apply it to your work if you really master it, so it takes a long time to learn!

You can look at the learning content in the source code era for your reference:

Introduction to Java programming (javaSE)

(java basic syntax, object-oriented programming ideas)

JavaSE advanced edition

(java general API, multi-thread concurrent programming, data structure/collection framework, IO/ network programming/reflection/design mode)

Mainstream database management system

(MysQL/ Oracle Bone Inscriptions, JDBC)

Detailed explanation of javaWeb development technology

(javaWeb front end, javaweb foundation, javaweb advanced)

Actual combat of large-scale projects

(CMS system, general circulation industry invoicing, CRM/ customer relationship management system, B2C e-commerce platform project)

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