Java Core in Practice with 120+ Exercises & Quizzes - 2025
What you'll 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
- String formatting
- String pool concept
- Object Oriented Programming (Java OOP)
- Class and object creation
- Constructor usage
- Encapsulation with getters and setters
- Inheritance implementation
- Method overriding
- Use of the super keyword
- Polymorphism in Java
- Method overloading and overriding differentiation
- Abstract classes and interfaces usage
- SOLID principles application
- Exception handling with try-catch blocks
- Checked and unchecked exceptions differentiation
- Custom exception creation
- Collections and Maps
- List, Set, and Queue usage
- Map manipulation
- Iterator usage
- Enumerations
- Generic class and method creation
- Input/output stream usage
- Object serialization and deserialization
- Thread management
- Synchronization for thread safety
- Executor framework usage
- Fork/Join framework usage
- Thread pooling
- Atomic variables for thread safety
- Inter-thread communication with wait-notify
Requirements
- Good news! There are no prerequisites for this course - it's perfect for anyone who's just getting started with programming. You don’t need any prior coding experience, and we’ll guide you through every step from the very basics.
- A computer (Windows, macOS, or Linux) to write and run Java programs.
- Basic computer skills, like installing software and managing files.
- Excitement to learn Java and have fun exploring the world of coding!
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!
Who this course is for:
- Newcomers to programming: You’ve never written a line of code before, and you’re eager to start with one of the most widely-used languages - Java!
- Students or professionals looking to build a foundation in programming to advance in fields like software development, data science, or game development.
- Self-learners who enjoy online learning and want a structured, beginner-friendly path to mastering Java.
- Career changers who are looking to enter the tech industry and want to start their journey with a strong foundation in Java.
- Hobbyists and tinkerers who want to learn how to build small programs and understand how coding works.
Instructors
- 4.6 Instructor Rating
- 334 Reviews
- 18,967 Students
- 4 Courses
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.
But I don't just teach Java – I live it. As a Senior Java Engineer, I work with Java every day to build complex, scalable applications for clients in a wide range of industries. That means you'll be learning from someone who has real-world experience and can help you understand how to apply your new skills in a professional setting.
So if you're ready to take your Java skills to the next level, join me in my Udemy course and let's get started!
- 4.6 Instructor Rating
- 334 Reviews
- 18,967 Students
- 4 Courses
About ITER Academy
Welcome to ITER Academy, where we transform passionate individuals into proficient software engineers. At ITER Academy, our mission is to provide high-quality, practical education in software engineering that prepares students for the challenges and opportunities of the tech industry.
Why Choose ITER Academy?
Experienced Instructors: Learn from industry professionals with years of experience in software engineering and education.
Practical Approach: Our courses emphasize hands-on projects and real-world applications to ensure you gain practical skills.
Flexible Learning: Study at your own pace with our flexible online courses, accessible from anywhere in the world.
Community Support: Join a vibrant community of learners and mentors who provide support, collaboration, and networking opportunities.
Our Vision
At ITER Academy, we envision a world where anyone, regardless of their background, can achieve their dream of becoming a software engineer. We strive to bridge the gap between education and employment by providing the skills and knowledge required to succeed in the ever-evolving tech landscape.
Join Us Today
Whether you are a beginner looking to start your journey in software engineering or a professional seeking to enhance your skills, ITER Academy has the right course for you. Enroll today and take the first step towards a rewarding career in technology!