Java vs. rex
lThe
analog to function in rex is method in Java. Functions are applied as aFunction(x, y, z), while methods are
applied like x.aMethod(y, z).
lArgument
and return types must be declared in Java, not in rex.
lBoth
allow recursion.
lAll
of the underlying functionality in rex is implementable.
lThink
of rex lists as your abstraction, use Java to implement it.
principal
argument (an object)