From Java to Smalltalk

Hi. I'd like to know how to convert some simple Java code and values to Smalltalk. Hope anybody can help me, please no laughs, I have no idea of java:

4L
800000000L
aString.lastIndexOf("/");  ??

Does anybody know a chart of conversion table/guide from X language to Smalltalk?

Cheers

Andrea Gammachi wrote:
> Hi. I'd like to know how to convert some simple Java code and values to
> Smalltalk. Hope anybody can help me, please no laughs, I have no idea of
> java:
>

Having no idea of Java is for the best :-)

I spent three years doing Java but have been happily back to Smalltalk
for five years now. Let's see if I remember enough Java to answer your
question.

> 4L
> 800000000L

These are integer literals -- the "L" suffix indicates they are of type
long. The closest Smalltalk equivalent is to just remove the "L" which
makes them integer literals.

However, the behavior is slightly different -- if you add one to the
most positive possible Java long I believe you get the most negative
possible Java long. In Smalltalk, integers do not have a fixed range, so
adding one to any integer always gives you a more positive integer. This
difference is unlikely to cause problems in most programs moved from
Java to Smalltalk.


> aString.lastIndexOf("/");  ??

This should be pretty close:

   aString lastIndexOf: $/

Be careful of how the indexes are being used -- Smalltalk assigns the
index 1 to the first character in a string, while I believe Java assigns
that character the index 0.

These methods may also differ in how they handle the case in which *no*
/ is found.

Regards,

-Martin

On 7/5/06, Martin McClure <[hidden email]> wrote:
Yes, they do.  In Java if the $/ isn't there you get back a -1, in
Smalltalk you get back a 0.

--
Jason Rogers

"Where there is no vision, the people perish..."
    Proverbs 29:18

Attached is a small conversion table between Java and Smalltalk. It  
does not cover the questions below, but hope it helps.



On Jul 5, 2006, at 2:53 PM, Andrea Gammachi wrote:

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