Java 25 Beginner guide [Leanpub PDF/iPad/Kindle]

Who This Book Is For

✅ Complete beginners who've never written code before ✅ Self-taught developers who need structured learning ✅ Career changers entering software development ✅ Students learning Java in school ✅ Professionals from other languages moving to Java ✅ Anyone who found other Java books too confusing

What You'll Build

By the end of this book, you'll have created:

✓ A fully functional contact management system
✓ A bank account application with transactions
✓ A todo list with file persistence
✓ A shape hierarchy with area calculations
✓ A REST API with Spring Boot
✓ Multiple games (Rock-Paper-Scissors, Number Guessing)
✓ A working inventory management system
✓ And 20+ more practical applications

Java 25: The Complete Beginner’s Guide to Programming

How to Use This Book

Part I – Your First Java Programs (Weeks 1-2)

Chapter 1 – Welcome to Java: Your First Steps in Programming

Chapter 2 – Variables, Data, and Simple Calculations

Chapter 3 – Making Decisions: Control Flow Basics

Chapter 4 – Repetition: Loops and Iteration

Chapter 5 – Methods: Teaching Your Code to Do Tricks

Part II – Objects and OOP (Weeks 3-4)

Chapter 6 – Your First Objects: Modeling the Real World

Chapter 7 – Collections: Working with Groups of Data

Chapter 8 – Records: Modern Java’s Data Containers

Part III – Object-Oriented Thinking (Weeks 5-6)

Chapter 9 – Designing with Objects: Encapsulation

Chapter 10 – Inheritance: Reusing and Extending Code

Chapter 11 – Polymorphism: One Interface, Many Forms

Chapter 12 – Interfaces: Contracts for Behavior

Part IV – Handling the Unexpected (Week 7)

Chapter 13 – Exceptions: When Things Go Wrong

Chapter 14 – File I/O: Reading and Writing Data

Part V – Modern Java Features (Weeks 8-9)

Chapter 15 – Streams: Processing Collections Functionally

Chapter 16 – Lambda Expressions: Functions as Data

Chapter 17 – Optional: Handling Missing Values Safely

Chapter 18 – Pattern Matching and Sealed Types

Part VI – Building Real Applications (Weeks 10-11)

Chapter 19 – Working with Dates and Times

Chapter 20 – Introduction to Testing with JUnit

Chapter 21 – Working with JSON and REST APIs

Chapter 22 – Multithreading Basics: Doing Multiple Things at Once

Part VII – Capstone Projects (Weeks 12-13)

Chapter 23 – JDBC Basics

Chapter 24 – Capstone Project 2: A Simple Web Application

Chapter 25 – Next Steps in Your Java Journey

Part VIII – What’s Next (Weeks 14-15)

Chapter 26 – Advanced Topics: Reflection, Annotations, and Dynamic Proxies

Chapter 27 – Java and the Cloud: Deploying Applications

Chapter 28 – The Future of Java: Project Amber, Loom, Panama, and Valhalla

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