There are only a few key intefaces you need to master in order to become a competent functional programmer. If you understand the concepts laid out in this functional Consumer interface example, ...

Here's what you need to know about object-oriented programming with classes, methods, objects, and interfaces, with examples in Java, Python, and TypeScript.

One more easy concept we can introduce in this Java tutorial is how to use methods. This will give you a bit more idea regarding the way that Java code is structured and what can be done with it.

Sealed classes make Java an even more powerful and expressive language and set the stage for even more sophisticated techniques such as pattern matching, which we'll explore in a subsequent article. A ...