This example will show you four different ways to implement this functional interface in your code — starting with how to use an actual class, and how to create very concise code with a lambda ...

The Java Scanner class is a simple, versatile ... of an instance of the Scanner with the new keyword. The import can optionally be removed if Java’s Scanner class explicitly references the package.

keyword, * {@code Long.valueOf ... package dustin.examples; import static java.lang.System.out; /** * Simple class demonstrating a nuance of Java's Integer identity comparisons.