foreword
Affected by the general environment this year, the interview is much more difficult than in previous years, and the requirements for programmers are getting higher and higher! We can't change the environment, what we can change is ourselves, and strive to improve technology!
I saw 115k+ Java tutorials on GitHub without any comments, and I feel pretty good, let me show you! The document is divided into five parts: Java foundation, Java container, Java concurrency, Java virtual machine, JavaIO.
Part 1: Java Basics
This chapter is divided into 11 subsections including data types, String, operations, keywords, Object common methods, inheritance, reflection, exceptions, generics, annotations, characteristics and other knowledge points
Part II: Java Containers
This chapter is divided into 3 subsections including overview, design patterns in containers, source code analysis
Part III: Java Concurrency
This chapter is divided into 13 subsections including using threads, basic thread mechanism, interrupt, mutual exclusion synchronization, cooperation between threads, thread state, JUC - AQS, JUC - other components, thread unsafe examples, Java memory model, etc. knowledge points
J.U.C - AQS
Java memory model
lock optimization
Good Practices for Multithreaded Development
Part IV: Java Virtual Machine
This chapter is divided into 3 subsections including runtime data area, garbage collection, memory allocation and recycling strategy
runtime data area
garbage collection
class loading mechanism
Part 5: Java IO
This chapter is divided into 6 subsections including overview, disk operation, byte operation, character operation, object operation, network operation, NIO
network operation
disk operation
byte manipulation
object manipulation
Due to space limitations, I will show you some of the content. If you need comments from friends + forward it, private message [Learning] and then the free goods area