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Java Tutorial

Learn modern Java 25 step by step, from your first program to streams, virtual threads, JDBC and testing.

32 free lessons Beginner to Advanced Covers Java 25 LTS

Start the first lesson

Getting Started

  1. 1Java Introduction
  2. 2Install the JDK & Set Up
  3. 3Your First Java Program
  4. 4Syntax & Comments
  5. 5Variables & Data Types
  6. 6Operators & Math
  7. 7Strings & Text Blocks
  8. 8User Input

Control Flow

  1. 9if & else
  2. 10switch Statements & Expressions
  3. 11Loops
  4. 12Arrays
  5. 13Methods & Overloading

Object-Oriented Java

  1. 14Classes, Objects & static
  2. 15Constructors
  3. 16Encapsulation & Packages
  4. 17Inheritance & Polymorphism
  5. 18Abstract Classes & Interfaces
  6. 19Records & Enums
  7. 20Sealed Classes & Pattern Matching

Core Libraries

  1. 21Exceptions
  2. 22Collections & Generics
  3. 23Lambdas & Functional Interfaces
  4. 24Streams & Optional
  5. 25File I/O with java.nio.file
  6. 26Date & Time

Advanced Java

  1. 27Threads & Virtual Threads
  2. 28Modules & Module Imports
  3. 29Maven & Gradle
  4. 30JDBC with MySQL
  5. 31Unit Testing with JUnit
  6. 32Project: Console Bank App

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