In a previous Java 101 tutorial, you learned how to better organize your code by declaring reference types (also known as classes and interfaces) as members of other reference types and blocks. I also ...

A callback operation in Java is one function that is passed to another function and executed after some action is completed. A callback can be executed either synchronously or asynchronously. In the ...

In the new compiler, a trait compiles directly to an interface with default methods, which not only improves binary compatibility and Java 8 interoperability, but also enables the alignment of Scala's ...