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Best courses to learn Java
Introduction to JUnit
Unlock reliable Java testing with our "Introduction to JUnit" course. Designed for students, junior developers, and QA testers who want to improve code quality and confidence, this course provides the essential foundations and practical tools of unit testing using JUnit 4 and JUnit 5. From understanding why unit tests matter to setting up JUnit, organizing tests, and integrating with build and CI tools, you’ll gain the skills to deliver maintainable, bug-resistant software. With real-world examples, actionable patterns, and hands-on tools like assertions, exception testing, parameterized test
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Building Scalable Java Microservices with Spring Boot and Spring Cloud
"Microservices" describes a software design pattern in which an application is a collection of loosely coupled services. These services are fine-grained, and can be individually maintained and scaled. The microservices architecture is ideal for the public cloud, with its focus on elastic scaling with on-demand resources. In this course, you will learn how to build Java applications using Spring Boot and Spring Cloud on Google Cloud. You'll use Spring Cloud Config to manage your application's configuration. You'll send and receive messages with Pub/Sub and Spring Integration. You'll also use
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Testing and Advanced REST with Spring Boot
Updated in May 2025. This course now features Coursera Coach! A smarter way to learn with interactive, real-time conversations that help you test your knowledge, challenge assumptions, and deepen your understanding as you progress through the course. Dive into the world of modern Java application development with this comprehensive course on testing and building REST APIs using Spring Boot. Learn to master JUnit and Mockito to create robust, reliable, and maintainable unit tests. Gain practical insights into setting up and optimizing build tools like Maven and Gradle, and discover how the
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Java SE 17 Developer (1Z0-829): Unit 8
Unlock the full potential of Java's data management capabilities with our comprehensive online course focused on JDBC and Java I/O APIs. This course is meticulously designed to equip you with the skills needed to seamlessly connect Java applications to SQL databases using JDBC. You'll learn to create connections, execute basic, prepared, and callable statements, and process query results efficiently. Our lessons emphasize transaction control and the importance of prepared statements in preventing SQL injection attacks. Additionally, the course delves into the Java I/O API, where you'll master
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Introduction to Python
Learning Python gives the programmer a wide variety of career paths to choose from. Python is an open-source (free) programming language that is used in web programming, data science, artificial intelligence, and many scientific applications. Learning Python allows the programmer to focus on solving problems, rather than focusing on syntax. Its relative size and simplified syntax give it an edge over languages like Java and C++, yet the abundance of libraries gives it the power needed to accomplish great things. In this tutorial you will create a guessing game application that pits the comput
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Learn to Teach Java: Inheritance and Recursion
Learn to program with Inheritance and Recursion in Java, and prepare to teach others using the free, online interactive CS Awesome textbook. In this course for teachers we'll guide you both in learning Java concepts and skills but also in how to effectively teach those to your students. This course will support you in teaching the Advanced Placement Computer Science A course or a similar introductory university-level programming course. We'll cover the Java concepts of inheritance and recursion, as covered in the APCS A Units 9 and 10. Each topic will begin by relating Java to block-based
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Java Object Basics: Functions, Recursion, and Objects
Code and run your first Java program in minutes without installing anything! This course is designed for learners with limited coding experience, providing a solid foundation of not just Java, but core Computer Science topics that can be transferred to other languages. The modules in this course cover functions, recursion, objects, and mutability. Completion of the prior 2 courses in this specialization are recommended. To allow for a truly hands-on, self-paced learning experience, this course is video-free. Assignments contain short explanations with images and runnable code examples with s
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Build AI Apps with Spring AI, OpenAI, Ollama & SpringBoot
This course features Coursera Coach! A smarter way to learn with interactive, real-time conversations that help you test your knowledge, challenge assumptions, and deepen your understanding as you progress through the course. In this course, you will explore how to harness the power of Spring AI, OpenAI, and Ollama to create intelligent AI-driven applications using Java and Spring Boot. From understanding the fundamentals of large language models (LLMs) to integrating OpenAI’s API, you'll learn the best practices for building and optimizing AI apps for real-world scenarios. By diving deep int
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Java: Inheritance, Exceptions and APIs
Java: Inheritance, Exceptions, and APIs is the third course of Exam Prep: Oracle Certified Associate, Java SE 8 [1Z0-808] Specialization. This course begins with essential Java fundamentals, covering syntax, variables, and data types, before progressing into more advanced topics such as object-oriented programming, inheritance, and encapsulation. Learners will explore how to apply operators and decision constructs, create and manipulate arrays, and effectively use looping mechanisms to control program flow. The course emphasizes method creation, overloading, and the use of access modifiers for
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