The java.util.function package contains well over 40 different components, but if you can garner a good understanding of consumers, predicates, functions, unary types and suppliers, knowledge of the ...

Interested in Java functional programming? The first place you need to start, especially if you use the Streams API, is with this Java Function interface example.

The correlation is that SIM cards installed in mobile devices are a type of Smart Card, and Java Card operates a programming interface to communicate with the SIM card.