Java Tutorial
Learn Java step by step through 81 structured lessons. The course starts with essential concepts and progresses toward practical, advanced topics, with explanations, syntax, examples, common mistakes and exercises you can try yourself.
- Level: Beginner to advanced
- Format: 81 free, self-paced lessons
- Best for: Students, career changers and developers refreshing their skills
What You Will Learn
This learning path covers the following areas in curriculum order:
- Java Tutorial
- Java Fundamentals
- Java Strings & I/O
- Java Control Flow
- Java Arrays
- Java Methods
- Java OOP
- Java Exceptions & Debugging
- Java Collections
- Java Generics & Functional
- Java Advanced
- Java Data Structures & Algorithms
- Java Reference
Who This Course Is For
This tutorial is suitable for complete beginners as well as learners who already know some programming and want a structured reference. Start from the first lesson if the subject is new to you. Experienced learners can use the curriculum below to jump directly to a specific concept.
How to Use This Tutorial
- Read each lesson in curriculum order and run every example yourself.
- Change the examples to test your understanding instead of only copying them.
- Complete the exercises and review the common-mistake sections before moving on.
- Bookmark this course page so you can return to the complete lesson index.
Course Contents
Java Tutorial
Java Fundamentals
Java Strings & I/O
Java Control Flow
Java Arrays
Java Methods
Java OOP
- Java OOP Introduction
- Java Classes and Objects
- Java Class Attributes
- Java Class Methods
- Java Constructors
- Java this Keyword
- Java Modifiers
- Java Encapsulation
- Java Inheritance
- Java Polymorphism
- Java Method Overriding
- Java Abstraction
- Java Interfaces
- Java Inner Classes
- Java Anonymous Classes
Java Exceptions & Debugging
Java Collections
- Java Collections Framework
- Java ArrayList
- Java LinkedList
- Java HashSet and TreeSet
- Java HashMap
- Java TreeMap
- Java Queue and Deque
- Java Iterators
- Java Comparable and Comparator
Java Generics & Functional
Java Advanced
- Java Enums
- Java Records
- Java Annotations
- Java File Handling
- Java Multithreading
- Java Synchronization
- Java Regular Expressions
- Java Date and Time
Java Data Structures & Algorithms
- Java Linked Lists (from scratch)
- Java Stacks and Queues
- Java Binary Trees
- Java Searching Algorithms
- Java Sorting Algorithms
- Java Big-O Notation
Java Reference
Frequently Asked Questions
Is this Java tutorial free?
Yes. The lessons listed on this page are free to read and can be completed at your own pace.
Do I need previous experience?
No previous experience is required for the introductory lessons. Some advanced modules are easier if you first complete the fundamentals in this course.
How should I practise?
Type and run the examples, deliberately change their inputs, predict the result before execution and build a small project after completing each major section.
Related Programming Courses
Continue building connected skills with these structured learning paths:
