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Home/Learn/Java Tutorial

Beginner to intermediate

Java Tutorial

Learn Java step by step, from your first program and core syntax to object-oriented programming, with practical examples and a structured syllabus.

3 modules
12 lessons
About 103 min reading

Start learning →

What you will learn

Understand core Java concepts with small, runnable examples.
Build confidence with variables, conditions, loops, and program flow.
Learn how classes and objects support object-oriented design.
Follow the syllabus in order, or open a lesson directly.

Prerequisites

No prior Java experience required
Basic computer familiarity

Course syllabus

Select any lesson to open it.

Module 1: Getting Started

3 lessons

Understand Java and prepare your development environment.

01Introduction to JavaWhat Java is, how it runs, and where it is used.6 min
02Install the JDKInstall a JDK and verify your Java development tools.8 min
03Write Your First Java ProgramCreate, compile, and run a simple Java application.8 min

Module 2: Java Fundamentals

4 lessons

Learn variables, operators, decisions, and loops.

04Variables and Data TypesStore values using Java's primitive and reference types.9 min
05Operators in JavaUse arithmetic, comparison, logical, and assignment operators.7 min
06Conditional StatementsControl program decisions with if, else, and switch.9 min
07Loops in JavaRepeat work with for, while, and do-while loops.9 min

Module 3: Object-Oriented Programming

5 lessons

Organize Java programs around classes, objects, and reusable behaviour.

08Classes and ObjectsModel data and behaviour with your own Java classes.10 min
09ConstructorsInitialize objects and understand constructor overloading.8 min
10InheritanceReuse and specialize behaviour using inheritance.9 min
11PolymorphismUnderstand method overloading, overriding, and dynamic dispatch.10 min
12Abstraction and InterfacesDefine contracts and expose essential behaviour in Java.10 min