but you will need to remember them to write any Java program. It even takes quite a bit of typing to call Java’s print function. The "System.out." before "print" identifies the standard output ...

This implementation will print out the value 25 ... So if you plan on any map-reduce programming with Java, Functions will become one of your biggest friends.

Is there a reason why functions in most(?) programming languages are designed to support any number of input parameters but only one return value? In most languages, it is possible to "work around ...