Black Week! UP TO 50% OFF!     |        Get Skills for Your IT Future!

close
Cart icon
User menu icon
User icon
Lightbulb icon
How it works?
FAQ icon
FAQ
Contact icon
Contact
Terms of service icon
Terms of service
Privacy policy icon
Privacy Policy

Best Online Courses to Learn Java

How to Learn Java?

To start, you need to master the fundamental concepts and terminology of programming. Understanding the roles of classes, objects, methods, and variables is essential, along with familiarizing yourself with key principles like inheritance, encapsulation, and polymorphism.

You鈥檒l also need to learn the basics of Java syntax and practice writing programs that include creating, reading, updating, and deleting data, commonly referred to as CRUD operations in application development.

We have prepared a list of interactive Java courses available on the Codenga platform. With these courses, you鈥檒l easily learn both the basics of programming and the Java language.

This comprehensive course is your perfect starting point for mastering Java fundamentals. With clear explanations and hands-on practice, you'll build a strong foundation and gain confidence in coding, all with just 15 minutes a day.

Explore key Java concepts such as variables, data types, arrays, loops, and conditional statements through a structured approach that ensures steady progress. Interactive exercises, including TrueCode challenges, allow you to practice and refine your skills, with unlimited attempts to perfect your solutions.

Java鈥檚 versatility powers projects from mobile apps to enterprise systems, offering endless career opportunities. Whether you're a complete beginner or just curious, this course will set you on the path to Java mastery.

This course is designed to elevate your Java knowledge with practical, hands-on learning. From day one, you'll work with real, functional Java code, mastering the skills used in application development. The flexible pacing ensures you can progress at your own speed while staying on track to complete the course and gain valuable expertise.

Advance your Java programming skills and dive deeper into the language. Master object-oriented programming concepts like classes, methods, objects, and inheritance. Learn to use access modifiers, work with multidimensional arrays, leverage the Math class, understand casting, and handle input data efficiently. By the end of the course, you'll be equipped to write more complex and functional applications.

Functional programming is a critical skill for modern Java developers, forming the backbone of countless applications and projects. If you're serious about advancing your Java development career, mastering this approach is a must.

This course is designed to teach you the core tools of functional programming in Java quickly and effectively. You'll gain hands-on experience with lambda expressions, streams, functional interfaces, and more. By the end, you'll create a functional project to cement your new skills.

What You鈥檒l Learn

  • Master lambda expressions.
  • Work with the Optional class.
  • Use method references with confidence.
  • Understand functional interfaces.
  • Master the forEach() method.
  • Leverage Streams for efficient data processing.
  • Explore powerful methods for working with Java Streams.
  • Apply your skills by completing a functional programming project.
  • Elevate your Java expertise with functional programming鈥攕tart today!

This course is perfect for anyone looking to effortlessly solve data structure problems in Java. Collections, which are pre-built data structures in the Java standard library, make it easy to manage and manipulate data without the need to create your own implementations.

As a Java developer, you'll frequently encounter scenarios where data structures are essential. With this course, you'll learn to leverage ready-made Collections to solve problems quickly and efficiently, gaining practical knowledge along the way. By the end, you'll apply your skills in a hands-on project to reinforce your learning.

What You鈥檒l Learn

  • Work with ArrayLists and LinkedLists.
  • Master Vector and Stack structures.
  • Use HashMap and TreeMap for mapping data.
  • Understand and work with HashSets and TreeSets.
  • Learn about LinkedHashSets and Hashtables.
  • Master PriorityQueue and ArrayDeque.
  • Complete a practical project to apply your new skills.
  • Gain confidence in using Java Collections and elevate your problem-solving abilities.

Prepare for your Java Developer interview by strengthening core concepts and coding skills. This course covers 30 commonly asked questions on key topics like object-oriented programming, collections, strings, and arrays.

What You鈥檒l Learn

  • Key differences between abstract classes and interfaces
  • Concepts like Serialization, autoboxing, and unboxing
  • ArrayList vs. LinkedList, shallow vs. deep copying, and more

Theory and Practice Combined

Each question offers a balance of theory and coding exercises, with AI-guided hints to help you succeed. By the end, you鈥檒l be interview-ready with solid theoretical understanding and practical skills!

Curious, what people say about these Courses?

Check out this article: Codenga reviews, and see why people are learning with our interactive courses.

Summary

The courses highlighted here will help you quickly master Java fundamentals and gain practical coding skills. The knowledge you acquire will be essential in any Java development role. Each course includes clear explanations, hands-on exercises, and a certificate of completion to validate your progress.