Udemy

Java from Beginner to Expert

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  • 21,468 Students
  • Updated 11/2025
4.4
(5,266 Ratings)
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Course Information

Registration period
Year-round Recruitment
Course Level
Study Mode
Duration
15 Hour(s) 56 Minute(s)
Language
English
Taught by
Arkadiusz Włodarczyk
Rating
4.4
(5,266 Ratings)
1 views

Course Overview

Java from Beginner to Expert

Java for beginners! Learn Java step by step, become a Java expert, and start building apps with Spring Boot today!

This Java course is designed for people who don't have any knowledge about programming.

Even if you've never written a single line of code or don't know what programming is all about — I’ll guide you step by step, and everything will soon make sense.

You’ll break the myth that programming is only for the few.

With the right guidance, Java is easy to learn - and incredibly powerful once you master it.


Why learn Java?

Java is one of the highest-paying and most in-demand programming languages in the world.
Thanks to its “Write once, run anywhere” philosophy, Java powers:

  • Android apps

  • Desktop applications

  • Web backends

  • Games

  • and more!

Did you know? One of the most popular games ever created — Minecraft — was built using Java.

If you're interested in Android development, Java is the foundation.


It’s the primary language for building Android apps, and a must-know for mobile developers.


What’s in this Java course?

This course contains over 15 hours of content, combining clear explanations with hands-on coding.

You’ll start from the basics of Java syntax and logic, and gradually build up to more advanced components of the Java language.

Throughout the course, you’ll write many small programs in pure Java, helping you learn through doing, not just watching.


---

But that’s not all!

Would you like to learn Java Spring Boot but don't know where to start?

This course will take you from the basics to a level where you'll confidently build a complete enterprise application on your own.

No unnecessary theory - just practical solutions used in real-world companies.

If you're interested in building modern backend applications, working in IT, or creating solid REST APIs, you're in the right place!

"Straight to the point" — practice before theory!

Many courses begin with long theoretical introductions covering Spring architecture, design patterns (MVC, Dependency Injection), and more.

In my course, we jump straight into practice. You'll see how Spring Boot works first, and only then will I explain why it works that way. Theory is integrated into practical examples rather than being served in isolation.

I emphasize understanding the "why" — not just the "how."

You won't just learn how to use annotations, methods, or classes. I'll explain why they are needed, what problems they solve, and how they work under the hood. This understanding will prevent you from blindly copying code and instead empower you to write efficient and scalable applications.

Gradual introduction to complexity

I won’t overwhelm you with too much information at once.

We start with simple concepts and gradually introduce more advanced topics.
For example, we’ll first add users manually before connecting to a database; we’ll use Spring Security’s default configuration before customizing it.

What will you learn?

  • Spring Boot from scratch — even if you’ve never used this framework before.

  • Building REST APIs — manage users, tasks, and data using Spring Boot and Hibernate.

  • Application security — Spring Security will help you protect your API from unauthorized access.

Why enroll?

  • Learn by building a real-world project — step by step, you’ll create a complete application.

  • No unnecessary theory — focus on real coding challenges.

  • Prepare for real-world Spring Boot development — beyond just writing code, you'll also learn about testing and deployment.

Attention! I've added for FREE 2,5h content about the basics of creating apps in Android Studio. Learn how to create Android Apps :-)

Over 350,000 students have enrolled in my courses, and all of them are happy. You will also be satisfied with this course. If you do not like the course, remember that you can take for 30 days a full refund. I guarantee your satisfaction.


Got questions while learning Java?

Ask away! I’m always happy to help students who are eager to grow.


Please check out the free lessons! See for yourself the exceptional quality of the course and enjoy it!

Join NOW and become Java Expert today!

Course Content

  • 10 section(s)
  • 143 lecture(s)
  • Section 1 Introduction
  • Section 2 Basics
  • Section 3 Useful shortcus
  • Section 4 Variables
  • Section 5 Operators
  • Section 6 Conditions
  • Section 7 Arrays
  • Section 8 Loops
  • Section 9 Object Oriented Programming (OOP)
  • Section 10 Lambda Expressions (Java 8)

What You’ll Learn

  • the semantics of Java (the meaning of words)
  • what is a compiler / IDE
  • variables / types of variables
  • operators - arithmetic, assigment, logical, bitwise
  • conditions like if / else / switch
  • arrays / multi-dimensional arrays
  • loops - for / while / do-while
  • methods, overloading/overriding methods, passing variables to methods etc.
  • object oriented programming
  • reference variables
  • constructors
  • interfaces
  • exceptions
  • packages
  • polymorphism
  • down casting
  • lambda expressions
  • classes/abstract classes
  • and many more
  • spring boot


Reviews

  • A
    Arun Kumar Rajendran
    5.0

    good

  • V
    Vijay Jamanpuri
    1.5

    g

  • S
    Sumedha S Tejas
    5.0

    Very Interactive and Explanative course. Very easy to understand and learn from.

  • P
    Prabu A
    4.5

    good

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