Though Java prevents multiple inheritance, ... a simple trick can be used to simulate multiple inheritance. ... which, in this example, is an RMI (remote method invocation) server.

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 ...

But NUnit goes beyond the use of attributes to ease inheritance and naming restrictions. For example, the [ExpectedException()] attribute associated with a test method informs the framework that ...