[e-lang] Couple of newbie questions

[Chris Rathman]

I'm trying to translate the examples of the first chapter of SICP into E 
(link at bottom).  A couple of questions I have.

1).  Random number generation:  I managed to piece together that you can 
use the java random class, along the lines of:

var random := <unsafe:java.util.makeRandom>()
var x := random.nextInt(100)

this gets the desired results.  I was just wondering if this is the best 
way to generate random numbers in E?

2).  Current Time in Milliseconds:  One of the function I'm translating 
tries to keep tabs on the amount of time.  In python, I'd do something like:

var y = timer.time()

Is there a function that returns the current time in milliseconds?  I 
see that there is a function |(currentTimeMillis) in java.lang.System, 
but there doesn't seem to be a makeSystem function (like I did with the 
makeRandom above).

SICP in E link:
http://www.codepoetics.com/wiki/index.php?title=Topics:SICP_in_other_languages#E


Thanks,
Chris Rathman
|