java-tutorial

17) Maven Essentials (Recommended)

Goal

Use Maven to manage dependencies, compile, and run tests in a repeatable way.

Why Maven?

• Everyone can build the same way
• Easy dependency management
• Standard project layout

Install

• Install Maven, verify:

mvn -version

Standard layout

• src/main/java → production code
• src/test/java → tests

Common commands

• Compile: mvn -q test (also runs tests)
• Run tests: mvn -q test

Minimal pom.xml ingredients

• Java version
• JUnit 5 dependency
• Surefire plugin (often auto)

If you want, I can scaffold a working Maven sample module in this repo.

Table of contents

1. Getting Started: Install, run, and your first program
2. Java Basics: types, variables, operators, formatting
3. Control Flow: if/switch/loops
4. Methods: parameters, return values, overloading
5. OOP: classes, objects, encapsulation
6. Inheritance & Polymorphism (and when not to use them)
7. Interfaces, abstract classes, and design basics
8. Exceptions and error handling
9. Strings, files, and I/O basics
10. Collections: List/Set/Map and Big-O intuition
11. Generics (the useful parts)
12. Lambdas & Streams
13. Dates and time (java.time)
14. Testing with JUnit 5 (basics)
15. Concurrency: threads, executors, futures
16. JVM basics: memory, GC, performance habits
17. Build tools: Maven essentials (recommended)
18. Next steps: projects to build