Java Course — Chapters

Complete Chapter List

All chapters of the Java course — select any chapter or jump to a specific section.

1. ▶ Chapter 1 — Java Overview
   • What is Java?
   • History
   • Tools
   • Try It (Hello World)
2. ▶ Chapter 2 — Environment Setup
   • Try It Online
   • Local Setup (Windows)
   • Popular Java Editors
3. ▶ Chapter 3 — Basic Syntax
   • First Java Program
   • Syntax Basics
   • Identifiers
   • Modifiers
   • Variables
   • Enums
   • Keywords (Sample list)
   • Comments
   • Blank Lines
   • Inheritance (Intro)
   • Interfaces
4. ▶ Chapter 4 — Objects & Classes
   • Objects in Java
   • Classes in Java
   • Constructors
   • Singleton Pattern
   • Creating Objects
   • Accessing Members
   • Source File Rules
   • Packages
   • Import Statements
   • Simple Case Study
5. ▶ Extra: Arrays (Quick Resource)
   • Introduction
   • Declaration & Creation
   • Initialization
   • Reading Input
   • Traversing
6. ▶ Chapter 5 — Basic Datatypes
   • Introduction
   • Primitive Types
   • Reference Types
   • Literals
7. ▶ Chapter 6 — Variable Types
   • Introduction
   • Local Variables
   • Instance Variables
   • Static / Class Variables
8. ▶ Chapter 7 — Modifiers
   • Introduction
   • Access Modifiers
   • Non-Access Modifiers
9. ▶ Chapter 8 — Operators
   • Arithmetic Operators
   • Relational Operators
   • Logical Operators
   • Operator Precedence
10. ▶ Chapter 9 — Input/Output
    • Output to Console
    • Input from Console
    • Reading Different Types
11. ▶ Chapter 10 — Problem Solving & Best Practices
    • Problem 1: Print Name & Address
    • Problem 5: Arithmetic Operations
    • Problem 10: Student Marks
    • Problem 18: Sum of Digits
12. ▶ Chapter 11 — Loop Control
    • While
    • For
    • Break
    • Enhanced For Loop
13. ▶ Chapter 12 — Decision Making
    • If
    • Switch
    • Ternary ? :
14. ▶ Chapter 13 — Numbers
    • Number Methods
    • Math Methods
    • BigInteger
15. ▶ Chapter 14 — Character
    • Escape Sequences
    • Character Methods
    • Practice
16. ▶ Chapter 15 — Strings
    • Immutability & Basics
    • Character Access
    • Comparison Methods
    • Practice
17. ▶ Chapter 16 — Arrays (Advanced)
    • Declaration & Creation
    • Multidimensional Arrays
    • java.util.Arrays
18. ▶ Chapter 17 — Date & Time
    • Getting Current Date & Time
    • Parsing Strings into Dates
    • Sleeping (Thread.sleep)
19. ▶ Chapter 18 — Regular Expressions
    • Regex Syntax
    • Pattern & Matcher
    • Practice
20. ▶ Chapter 19 — Methods
    • Creating Methods
    • Method Overloading
    • The this Keyword
21. ▶ Chapter 20 — Files & I/O Streams
    • Reading Files
    • Writing Files
    • File Class & Directories
22. ▶ Chapter 21 — Exceptions
    • Exception Hierarchy
    • Catching Exceptions
    • Try-With-Resources
23. ▶ Chapter 22 — Inner Classes
    • Nested Classes
    • Anonymous Inner Classes
    • Static Nested Classes
24. ▶ Chapter 23 — Object-Oriented Programming
    • Introduction to OOP
    • extends Keyword
    • Types of Inheritance
25. ▶ Chapter 24 — Method Overriding
    • Rules for Overriding
    • Using @Override
    • Dynamic Dispatch
26. ▶ Chapter 25 — Polymorphism
    • Introduction to Polymorphism
    • Up/Down Casting
    • The instanceof Operator
27. ▶ Chapter 26 — Encapsulation
    • private Modifier
    • Getters & Setters
    • Immutability
28. ▶ Chapter 27 — Interfaces
    • Declaring Interfaces
    • Implementing Interfaces
    • Practice
29. ▶ Chapter 28 — Packages
    • Creating Packages
    • import Keyword
    • Classpath Basics