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Learn Core Java from Scratch: Hands-On Training – 2026 (Udemy.com)

Java, Java Core, Object Oriented Programming (OOP), Collections, Maps, Exceptions, Generics, IO, Concurrency Explained

Created by: Andrii Partola

Last updated January 2026

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What you will learn

  • Java
  • Java Core
  • Java Development Kit (JDK) setup
  • Basic Java program execution
  • Integrated Development Environment (IDE) understanding
  • Primitive data types usage
  • Variable declaration and initialization
  • Type casting
  • Primitive and non-primitive data type differentiation
  • Array and string declaration
  • Variable naming conventions
  • Variable scope
  • Console output
  • Console input using the Scanner class
  • Arithmetic operators usage
  • Comparison and logical operators usage
  • Operator precedence understanding
  • if-else statement usage
  • Switch statement usage
  • Loop usage (for, while, do-while)
  • Loop control (break, continue)
  • Method definition and invocation
  • Method overloading
  • Recursion in methods
  • Array manipulation
  • String immutability understanding
  • String concatenation
  • String comparison

How it compares

Against the other 518 rated Udemy courses in Software Development on CourseDuck:

  • Rating4.4 out of 5higher than 28% of them
  • Reviews621#198 of 519 by number of reviews
  • Length16.7 hourslonger than 82% of them
  • Last updatedJanuary 2026more recently than 56% of them

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Course Description

Welcome to the World of Java Programming!

Welcome to our Java Core Course! We are happy to have you here as you begin your journey into programming or grow your skills. This course is perfect for everyone—whether you’re just starting, thinking about switching careers, or simply curious about coding. You don’t need a computer science degree to join—just a desire to learn.


Why Take This Course?

At ITER Academy, we have already taught over 1,000 students in classrooms. Now, we are bringing all that knowledge and experience online, so more people can benefit. Your teacher, Andrii Partola, is a Senior Java Engineer who works with Java every day. He uses Java to create powerful and complex programs for real companies. He has taken his real-world experience and turned it into lessons that are easy to understand and fun to follow.


Who Can Learn Java with Us?

This course is made for everyone.

  • Complete beginners: Even if you’ve never written a single line of code, this course will guide you step by step.

  • Career changers: If you want to start a new career in tech, this course will give you the tools you need.

  • Anyone curious about programming: If you’ve always wanted to try coding, this is a great place to start.


Learn with Real-Life Examples

Learning is easier when you can see how things work. That’s why this course is full of real-life examples. You’ll see how Java is used to solve problems, so you can understand not just what you’re learning, but also why it’s useful. These examples will help you remember things better and prepare you to use Java on your own.


Quizzes to Check Your Knowledge

To make sure you really understand the material, this course includes quizzes after many lessons. These quizzes will help you review important ideas and see how much you’ve learned. They’re a fun way to test yourself and feel confident before moving on to the next topic.


Practice Coding with Exercises

The best way to learn programming is by writing code yourself. That’s why this course has lots of coding exercises. These exercises give you a chance to practice what you’ve learned and solve problems like a real programmer. By doing this, you’ll get better and more confident with every lesson.


Lessons Designed for Success

We didn’t just create this course from scratch. We studied many other popular courses to learn what works best. Every lesson in this course is carefully organized, so it’s easy to follow and makes sense step by step. Each lesson is packed with useful information, so you learn quickly without wasting time.


Free Access to All Code

All the code written in this course is available on GitHub. You can download it, use it, and practice with it whenever you need. This means you’ll always have access to examples to help you as you keep learning.


Why Choose ITER Academy?

  • Practical knowledge: Learn the skills that are used in real programming jobs.

  • Simple and clear lessons: No confusing words or hard-to-follow explanations.

  • Step-by-step structure: Each lesson builds on the last one, so you never feel lost.

  • Experienced teacher: Learn from a professional Java engineer with years of experience.


Start Learning Today

With easy-to-follow lessons, plenty of examples, quizzes, and exercises, this course gives you everything you need to become confident in Java programming. Join us today and let’s start your journey into the world of coding together!

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Instructor Details

Andrii Partola

Hi, my name is Andrii Partola, I am from Ukraine and I'm a Senior Java Engineer and the founder of ITER Academy, a leading provider of Software Engineering courses.

With over 9 years of production engineering experience and 5 years of experience as a Software Engineering tutor, I'm passionate about helping students learn the skills they need to succeed in the IT industry. At ITER Academy, we've helped more than 1000 students find jobs in the IT industry after completing our courses.

As the world of education evolves, so do we. That's why we're excited to be moving from offline to completely online courses. By offering our courses on Udemy, we're able to reach even more students and provide them with the knowledge and skills they need to succeed in the fast-paced world of technology.

In my Java course, you'll learn everything you need to know to become a proficient Java developer. From the basics of programming to advanced topics like multithreading and database connectivity, you'll gain the skills and knowledge you need to build real-world applications.

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Reviews

4.4

621 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Ibrahim Esa on 5/29/2026

The explanation method and the course organization are excellent. I hope you will add another course explaining Swing or Java FX.

By ILIAS Boukhris on 12/14/2025

Thanks for your friendly explanation, I really appreciate it I would like to work on a final project where I can use all things I had learned, What do you suggest me?

By Sathvik Reddy on 8/17/2025

It's an excellent course which covers every core concept and some EXTRA Concepts too. Overall i would recommend beginners to go with it as it helped me start my Java journey as I prior programming experience in Assembly Language (ARM)

By Jayesh Londhe on 7/13/2025

This Java course is a solid pick for learners who want to deeply understand Java as an object-oriented language. With strong teaching and useful projects, it’s especially great for beginners. Highly recommended

By Vema Vasavi Viswajitha on 6/22/2025

I think it's a good platform to learn coding. i excited to learn more about coding.

By Prateek Gupta on 6/21/2025

It's great learning with Udemy, Java core concepts, and it's all a test series that helps me a lot in my learning and improves my skills

By SINGH CHRIST BADUGU on 6/20/2025

This is a very very excellent and most beautiful like thunder, explanation and this is best platform to who have want to grow there in their life, expand wise, and calculating mathematic instructions

By Cricket X Lokesh on 4/6/2025

better than I thought! I would give 5 stars in upcoming course as of now I am impressed

By Matteo Russo on 3/6/2025

Was struggling to learn Java on my own, but this course made it so much easier. The explanations are clear, and I finally feel like I'm making progress!

By Yelyzaveta Kiian on 2/12/2025

I’m really enjoying this course so far. the video quality is excellent and the content is detailed and super useful. Everything is explained clearly, making it easy to follow along. Highly recommend!

Showing all 10 reviews on CourseDuck

Read all 621 reviews on Udemy

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Quality Score

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Overall Score : 88 / 100