I attended the ConFoo conference in Montreal, which covered a range of technologies like cloud computing, Java and JVM technologies, Javascript, DevOps, architecture and design patterns, PHP, security, test and quality, management, UX and UI, and more. The conference took place over three days at the Bonaventure Hotel, but I could only attend on the … Read more
Java sealed classes are a powerful feature that can help you create more robust and maintainable code by restricting the inheritance hierarchy of your classes and interfaces.
Optional is a Java class that provides a way to handle null values in a type-safe and efficient manner. It can help you avoid null pointer exceptions, simplify your code, and improve its readability and maintainability. This tutorial will cover the features and use cases of Optional in Java, with practical examples of how to use it for handling nulls