This blog introduces multiple logging libraries including log4j, slf4j, and how to configure the logs in Java.

This blog introduces MyBatis

This blog introduces an overall architecture of a Spring project in RPC context and the usage of .properties configuration file

This blog introduces Annotation in Java, and how to define my own annotation and use it

This blog introduces how to compile, run, and package a Java project

This blog introduces Java Exceptions

This blog introduces Java Object Oriented Programming, including Encapsulation, Inheritance, and Polymorphism. This blog also contains demos and syntax of using Java OOP.

This blog introduces what are java threads and java virtual threads in Java 21

This blog introduces Base64 encode and decode

This blog introduces Serialization/Deserialization, JSON, XML, and Protobuf