Welcome to this comprehensive set of notes on Java programming, based on the course Introduction to Object-Oriented Programming with Java by Georgia Tech.
These notes are designed for beginners and gradually progress toward more advanced topics. They were originally wrote by me as a personal study guide but have since received nearly 4,000 stars and favorites on the Chinese social media app 🍠 Red Notes (view this post here), becoming a popular resource among those starting their journey in software development.
💡 These notes were my introduction to programming and helped build a strong foundation in computer science. I hope they can do the same for you.
This guide covers a wide range of Java topics, organized from beginner to advanced:
- Installing Java and setting up your environment
- Java syntax and structure
- Variables and data types
- Operators and expressions
- Control flow:
if,else,switch, loops (for,while,do-while)
- Classes and objects
- Fields and methods
- Constructors
- Encapsulation and access modifiers
thiskeyword- Static variables and methods
- Class inheritance (
extends) - Method overriding and overloading
superkeyword- Abstract classes and interfaces
- Polymorphism and dynamic method dispatch
- Exception handling (
try,catch,finally,throws) - File I/O (reading and writing files)
- Collections framework:
ArrayList,HashMap,Set, etc. - Generics
- Enums
- Lambda expressions and functional interfaces (Java 8+)
- Writing test cases with JUnit
- Debugging tips and tools
- Using IDEs like IntelliJ IDEA or Eclipse effectively
- Creating simple Java projects
- Console-based applications
- Intro to GUI with JavaFX (optional)
- Basic algorithmic problems and solutions
Option 1:
git clone https://github.com/your-username/java-programming-notes.gitOption2:
View the notes here: https://docs.google.com/document/d/1bBB7HFSygp2T3NLCOHZL6yCGzf5g5yA9dOHMqmmr0XE/edit?usp=sharing