The entry point of a standalone Java application is the main method or function. In the age of Servlets and JSPs, Java’s main function took a backseat to these technologies that were initialized with ...

Method references are a shorthand way to write lambda expressions that call a single method. Rather than implementing a method in a functional interface, a method reference simply points to an ...

For this Java Function interface example, we will provide a single method named “apply” that takes an Integer as an argument, squares it and returns the result as a String. Before we begin, let’s take ...