Java

Getting Started

• Toolchain - Compiler, Gradle, and Maven
• Types - Data types
• String - String type
• Operators - Operators and expressions
• Array - Array type
• Control Flow - Control flow and arrays
• Comments - Comments

Core Concepts

• Object and Class - Object-oriented programming fundamentals
• Inheritance - Inheritance, interfaces, and inner classes
• Package - Package and import statements
• Generics - Generic types and methods
• Annotation - Annotation definition and processing
• Exceptions - Error handling, assertions, logging, and debugging

Advanced Topics

• Regular Expression - Regular expression
• I/O - Input/output and regular expressions
• Collections - Collection framework and algorithms
• Concurrency - Multithreading and synchronization
• Garbage Collection - Garbage collection and optimization

Engineering

• Style Guide - Naming conventions
• Testing - JUnit framework and testing patterns
• MyBatis - MyBatis proxy and interceptor patterns