Get a deep dive into using method references in your Java programs, including stream operations, event listeners, and constructors and factories.

In Java, we can implement the functional interface with a lambda expression and pass it to a method, then execute the function after an operation is finished. Here’s how that looks in code: ...

We discuss how to work with directories, sub-directories, and traverse them using Java and the DirectoryStream method. Learn more.

Googling for "Java return multiple values" reveals people like some "javatuples" library. I have not played with records yet, but if you are using Java >= 16, I would test using records.