Modern Java: From Fundamentals to Advanced Architecture

Master Java 25 with hands-on learning in modern OOP, functional Streams, advanced concurrency, and professional testing with JUnit 6.

Advanced

181 Lessons

20h

Updated this week

Master Java 25 with hands-on learning in modern OOP, functional Streams, advanced concurrency, and professional testing with JUnit 6.

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This course includes

3 Projects

398 Playgrounds

16 Quizzes

This course includes

3 Projects

398 Playgrounds

16 Quizzes

Course Overview

Java is widely used in enterprise systems and large-scale cloud applications. Recent releases have introduced features that improve developer productivity and performance in distributed systems. This course covers the key language and platform updates in Java 25 to help developers build or modernize their applications. You’ll start by establishing a Java mindset and exploringbthe JVM architecture and its core building blocks. Next, you’ll move into advanced OOP, covering core principles alongside modern co...Show More

What You'll Learn

A solid understanding of the Java Virtual Machine (JVM) and the “write once, run anywhere” philosophy

An understanding of object-oriented programming (OOP) principles, including inheritance, polymorphism, and encapsulation

Hands-on experience with the latest Java 25 features, including advanced Records and Sealed slasses, and modern Switch expressions

The ability to write clean, functional-style code using Lambda expressions and the Stream API

Proficiency in managing complex data structures using the Java Collections framework and generics

Knowledge of concurrent programming, from basic threads to advanced tools like the Executor framework and CompletableFuture

Hands-on experience with file I/O, JSON processing with Jackson, and professional testing using JUnit 6

Familiarity with the Java ecosystem, including build tools like Maven/Gradle, and an introduction to Spring Boot

What You'll Learn

A solid understanding of the Java Virtual Machine (JVM) and the “write once, run anywhere” philosophy

Course Content

The Java Mindset

Understand the Java’s architecture by exploring its design philosophy, program structure, documentation tools, and the internal mechanics of the JVM.

Course Overview

Anatomy of a Java Program Comments and Documentation How Java Runs Code Behind the Scenes Quiz: The Java Mindset

Variables, Types, and Operators

Establish the foundation of data manipulation in Java, covering primitive and reference types, type casting, and wrappers needed to build an expressive logic.

Primitive and Reference Types Literals and the var Keyword Operators and Expressions Casting and Type Conversion Wrapper Classes and Autoboxing Quiz: Variables, Types, and Operators Exercise: The Coffee Shop Receipt Solution: The Coffee Shop Receipt Exercise: Planetary Gravity Calculator Solution: Planetary Gravity Calculator Exercise: Network Permission Flags Solution: Network Permission Flags

Control Flow and Methods

Master the core logic of Java programming by controlling execution flow with conditionals and loops, and structuring code into reusable, modular methods.

Conditional Statements Iterative Statements Interactive Programs with Scanner Defining and Calling Methods Overloading and Parameter Passing Creating Flexible Methods with Varargs Quiz: Control Flow and Methods Exercise: Smart Thermostat Control Solution: Smart Thermostat Control Exercise: Secure Banking Menu Solution: Secure Banking Menu Exercise: Grade Report Generator Solution: Grade Report Generator

Classes and Objects

Transition into OOP by defining classes and objects, enforcing encapsulation, mastering initialization with constructors, and organizing code using packages.

Creating Classes and Objects Encapsulation and Access Control Constructors and Initialization Static Members and Constants Packages and Imports Quiz: Classes and Objects Exercise: Digital Product Catalog Solution: Digital Product Catalog Exercise: Unique ID Generator for Orders Solution: Unique ID Generator for Orders Exercise: Flexible Pizza Orders Solution: Flexible Pizza Orders Exercise: The Scientific Constants Library Solution: The Scientific Constants Library

Inheritance and Polymorphism

Scale application design by building class hierarchies with inheritance, enforcing contracts via interfaces, and writing flexible code through polymorphism.

Understanding Inheritance Method Overriding and Polymorphism Abstract Classes Interfaces The final Keyword Quiz: Inheritance and Polymorphism Exercise: The Employee Payroll System Solution: The Employee Payroll System Exercise: Secure Banking Documents Solution: Secure Banking Documents Exercise: Media Player Interfaces Solution: Media Player Interfaces

Strings and Arrays

13 Lessons

Enhance data processing capabilities by mastering text manipulation with strings and StringBuilder, and organizing structured information using arrays.

Build a Cinema Ticket Booking Application

Project

Advanced OOP Features

12 Lessons

Elevate class design by encapsulating logic with nested types, modeling data with records and enums, and securing hierarchies with sealed classes.

Exception Handling

12 Lessons

Build resilient applications by managing runtime errors with the exception hierarchy, implementing structured recovery logic, and designing custom exceptions.

File and Data I/O

12 Lessons

Manage external data by navigating file systems with NIO.2, persisting objects via serialization, and processing structured text using JSON.

10.

Collections Framework

11 Lessons

Streamline data management by mastering the Collections framework, selecting optimal structures like Lists and Maps, and applying efficient iteration patterns.

11.

Generics and Type Safety

12 Lessons

Enforce type safety and reusability by designing generic classes and methods, leveraging wildcards for flexible APIs, and mastering custom sorting strategies.

Personal Finance Analyzer

Project

12.

Functional Programming in Java

12 Lessons

Adopt functional programming by simplifying code with lambdas, processing data via Streams, and handling nulls safely with Optional.

13.

Threads and Concurrency

11 Lessons

Enable efficient multitasking by managing the thread life cycle, synchronizing shared resources with locks, and ensuring safe concurrent execution.

14.

Modern Concurrency Tools

12 Lessons

Scale apps by managing thread pools with Executors, building async pipelines via CompletableFuture, and synchronizing tasks using coordination utilities.

15.

Reflection and Metadata

8 Lessons

Unlock runtime flexibility by inspecting code with Reflection, defining metadata with Annotations, and structuring apps with the Java Module System.

16.

Testing, Logging, and Build Tools

9 Lessons

Deliver reliable software by verifying logic with JUnit, monitoring runtime behavior with logging, and managing builds with modern tools.

StockPulse: A Real-Time Trading Simulation

Project

17.

Wrapping Up

1 Lesson

Solidify your mastery by synthesizing the course journey, reinforcing modern practices, and charting a path toward enterprise frameworks and architecture.

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