[#374683] A algorithm for finding the number — zuerrong <zuerrong@...>

Hi members,

11 messages 2010/12/01

[#374721] FasterCSV parsing issues — Jeremy Woertink <jeremywoertink@...>

I'm using FasterCSV to do an import into my DB, and the CSV file

14 messages 2010/12/01

[#374765] Singleton class, metaclass, eigenclass: what do they mean? — Tony Arcieri <tony.arcieri@...>

Every time I think I have my head around what these terms mean I seem to run

29 messages 2010/12/02
[#374783] Re: Singleton class, metaclass, eigenclass: what do they mean? — Intransition <transfire@...> 2010/12/02

[#374787] Re: Singleton class, metaclass, eigenclass: what do they mean? — Gary Wright <gwtmp01@...> 2010/12/02

[#374803] Re: Singleton class, metaclass, eigenclass: what do they mean? — Intransition <transfire@...> 2010/12/02

[#374825] Re: Singleton class, metaclass, eigenclass: what do they mean? — Tony Arcieri <tony.arcieri@...> 2010/12/02

On Thu, Dec 2, 2010 at 11:50 AM, Intransition <transfire@gmail.com> wrote:

[#374830] Re: Singleton class, metaclass, eigenclass: what do they mean? — Intransition <transfire@...> 2010/12/02

[#374832] Re: Singleton class, metaclass, eigenclass: what do they mean? — Tony Arcieri <tony.arcieri@...> 2010/12/02

On Thu, Dec 2, 2010 at 4:18 PM, Intransition <transfire@gmail.com> wrote:

[#374834] Re: Singleton class, metaclass, eigenclass: what do they mean? — Gary Wright <gwtmp01@...> 2010/12/02

[#374835] Re: Singleton class, metaclass, eigenclass: what do they mean? — Tony Arcieri <tony.arcieri@...> 2010/12/02

On Thu, Dec 2, 2010 at 4:55 PM, Gary Wright <gwtmp01@mac.com> wrote:

[#374844] Re: Singleton class, metaclass, eigenclass: what do they mean? — Gary Wright <gwtmp01@...> 2010/12/03

[#374850] Re: Singleton class, metaclass, eigenclass: what do they mean? — Peter Vandenabeele <peter@...> 2010/12/03

On Fri, Dec 3, 2010 at 5:05 AM, Gary Wright <gwtmp01@mac.com> wrote:

[#374903] Re: Singleton class, metaclass, eigenclass: what do they mean? — Tony Arcieri <tony.arcieri@...> 2010/12/04

On Fri, Dec 3, 2010 at 1:17 AM, Peter Vandenabeele

[#374924] Re: Singleton class, metaclass, eigenclass: what do they mean? — Peter Vandenabeele <peter@...> 2010/12/04

On Sat, Dec 4, 2010 at 4:37 AM, Tony Arcieri <tony.arcieri@medioh.com> wrote:

[#374954] Re: Singleton class, metaclass, eigenclass: what do they mean? — Rick DeNatale <rick.denatale@...> 2010/12/05

On Sat, Dec 4, 2010 at 2:56 PM, Peter Vandenabeele

[#374786] Screen scraping an aspx site with Mechanize — Sofie Willander <sofiewil@...>

Hi,

11 messages 2010/12/02

[#374875] cast object to object — "David E." <davidreynon@...>

So I have an object of class (user defined) Dave() and Dave2()

13 messages 2010/12/03

[#374960] Q: what database would you suggest? — Diego Virasoro <diego.virasoro@...>

Hi,

18 messages 2010/12/05

[#375002] Traverse YAML node tree with non-unique values — "Martin C." <mydoghasworms@...>

I have a YAML document which I believe is valid (at least it would be

11 messages 2010/12/06

[#375018] Manual Memory Management and Automatic Garbage Collection — Tridib Bandopadhyay <tridib04@...>

Hello all

27 messages 2010/12/06

[#375118] HTTP POST request --> Ruby server — Chananya Freiman <thebluedragont@...>

I am making a tiny web server, and I am having problems with HTTP POST

17 messages 2010/12/07

[#375149] ruby book — abe <abedar2000@...>

i am looking for a good ruby book for a developer who has a c

14 messages 2010/12/08

[#375170] Consume Soap Service with Basic Authentication — Chris Gunnels <rfsllc@...>

I have been searching and trying different gems to get this to work, but

10 messages 2010/12/08

[#375192] Splitting on capital letters — Ralph Shnelvar <ralphs@...32.com>

Assume I have camelized string like

13 messages 2010/12/08

[#375213] Making a Website with Ruby (not rails?) — Jesse Jurman <e.j.jurman@...>

I have been programming in Ruby for a while and have made several

12 messages 2010/12/09

[#375270] Help with net/http — Atomic Bomb <atomicmcbomb@...>

I am trying to screen scrape a webpage and pull out the name, address,

19 messages 2010/12/09
[#375273] Re: Help with net/http — Alex Stahl <astahl@...5.com> 2010/12/09

Nokogiri provides a great interface for accessing the data trapped

[#375285] Re: Help with net/http — "A. Mcbomb" <atomicmcbomb@...> 2010/12/10

Thanks Alex.

[#375289] Re: Help with net/http — Jes俍 Gabriel y Gal疣 <jgabrielygalan@...> 2010/12/10

On Fri, Dec 10, 2010 at 6:28 AM, A. Mcbomb <atomicmcbomb@gmail.com> wrote:

[#375291] Re: Help with net/http — "A. Mcbomb" <atomicmcbomb@...> 2010/12/10

I didn't realized that, Jesus but it didn't help in my installation.

[#375292] Re: Help with net/http — Jes俍 Gabriel y Gal疣 <jgabrielygalan@...> 2010/12/10

On Fri, Dec 10, 2010 at 10:48 AM, A. Mcbomb <atomicmcbomb@gmail.com> wrote:

[#375293] Re: Help with net/http — "A. Mcbomb" <atomicmcbomb@...> 2010/12/10

That definately helped, Jesus....thanks.

[#375295] Re: Help with net/http — Jes俍 Gabriel y Gal疣 <jgabrielygalan@...> 2010/12/10

On Fri, Dec 10, 2010 at 11:39 AM, A. Mcbomb <atomicmcbomb@gmail.com> wrote:

[#375298] Re: Help with net/http — "A. Mcbomb" <atomicmcbomb@...> 2010/12/10

Here's what my server is running:

[#375424] Instiki failing to run - msvcrt-ruby18.dll not found — John Smth <blip@...>

Hi

16 messages 2010/12/14

[#375442] do your bit for my mental health - how to find the difference between two strings? — Iain Barnett <iainspeed@...>

Hi,

22 messages 2010/12/14

[#375537] Ruby and science ? — Michel Demazure <michel@...>

I am really puzzled.

56 messages 2010/12/16
[#375557] Re: Ruby and science ? — Tony Arcieri <tony.arcieri@...> 2010/12/16

On Thu, Dec 16, 2010 at 3:19 AM, Michel Demazure <michel@demazure.com>wrote:

[#375560] Re: Ruby and science ? — Michel Demazure <michel@...> 2010/12/16

Tony Arcieri wrote in post #968904:

[#375567] Re: Ruby and science ? — Colin Bartlett <colinb2r@...> 2010/12/16

On Thu, Dec 16, 2010 at 6:36 PM, Michel Demazure <michel@demazure.com>wrote:

[#375664] Re: Ruby and science ? — Charles Oliver Nutter <headius@...> 2010/12/18

On Thu, Dec 16, 2010 at 5:15 PM, Colin Bartlett <colinb2r@googlemail.com> wrote:

[#375675] Re: Ruby and science ? — "ara.t.howard" <ara.t.howard@...> 2010/12/18

[#375681] Re: Ruby and science ? — Charles Oliver Nutter <headius@...> 2010/12/19

On Sat, Dec 18, 2010 at 1:00 PM, ara.t.howard <ara.t.howard@gmail.com> wrote:

[#375687] Re: Ruby and science ? — James Edward Gray II <james@...> 2010/12/19

On Dec 18, 2010, at 6:24 PM, Charles Oliver Nutter wrote:

[#375538] Re: Ruby and science ? — Phillip Gawlowski <cmdjackryan@...> 2010/12/16

On Thu, Dec 16, 2010 at 11:19 AM, Michel Demazure <michel@demazure.com> wrote:

[#375569] Re: Ruby and science ? — Ryan Davis <ryand-ruby@...> 2010/12/16

[#375581] Re: Ruby and science ? — Michel Demazure <michel@...> 2010/12/17

Ryan Davis wrote in post #968969:

[#375582] Re: Ruby and science ? — Phillip Gawlowski <cmdjackryan@...> 2010/12/17

On Friday, December 17, 2010, Michel Demazure <michel@demazure.com> wrote:

[#375584] Re: Ruby and science ? — Michel Demazure <michel@...> 2010/12/17

Phillip Gawlowski wrote in post #969006:

[#375590] Is programming art? — Yu-Hsuan Lai <raincolee@...>

(I'm a high school student confused by this concept)

23 messages 2010/12/17

[#375706] Regexp, String, Symbol literals' object_ids — "Pavel R." <pavel.rosputko@...>

Regexp literals:

14 messages 2010/12/19

[#375725] downloading a file — Rajinder Yadav <devguy.ca@...>

hello what is the best way to download a file?

12 messages 2010/12/20

[#375787] how to know a search result is successfully displayed through its source codes — Fan Jin <jeff_yq@...>

I am working on a project where need to search a keyword by using simple

9 messages 2010/12/21
[#375805] Re: how to know a search result is successfully displayed through its source codes — Jeremy Bopp <jeremy@...> 2010/12/21

On 12/21/2010 01:24 AM, Fan Jin wrote:

[#375839] gem install ruby-debug-ide errors don't give me anything to look for. — Kedar Mhaswade <kedar.mhaswade@...>

Hope I am not missing something obvious. I have searched high and low.

11 messages 2010/12/22

[#375908] What is the the best style and theory of writing a complier in your language — small Pox <smallpox911@...>

What is the the best style and theory of writing a complier in your

8 messages 2010/12/23

[#375921] Numeric comparison with nil - Math masochists only!! — serialhex <serialhex@...>

Alright, i'm trying to do three things at once, and I'm almost succeeding.

17 messages 2010/12/24
[#375950] Re: Numeric comparison with nil - Math masochists only!! — Colin Bartlett <colinb2r@...> 2010/12/24

On Fri, Dec 24, 2010 at 3:45 AM, serialhex <serialhex@gmail.com> wrote:

[#375955] Re: Numeric comparison with nil - Math masochists only!! — serialhex <serialhex@...> 2010/12/25

Colin, your amazing insight has led me to programming greatness!!!

[#376011] Re: Numeric comparison with nil - Math masochists only!! — Robert Klemme <shortcutter@...> 2010/12/27

On Sat, Dec 25, 2010 at 2:34 AM, serialhex <serialhex@gmail.com> wrote:

[#376053] Re: Numeric comparison with nil - Math masochists only!! — serialhex <serialhex@...> 2010/12/28

hey robert, thanks for the great article, i'll keep that stuff in mind as

[#376057] Re: Numeric comparison with nil - Math masochists only!! — Everett L Williams II <rett@...> 2010/12/28

serialhex wrote:

[#376063] Re: Numeric comparison with nil - Math masochists only!! — serialhex <serialhex@...> 2010/12/28

>

[#376060] From python to ruby — AM <al.ma@...>

Hello

18 messages 2010/12/28

[#376066] Should I learn Ruby? — Din Ibbles <d.sp@...>

I am wondering whether to learn Ruby, as I would like to get a job after

21 messages 2010/12/28

[#376075] convert String "1;2;3;4;5;" to Array [1, 2, 3, 4, 5] — "Thomas T." <tthackery@...>

I'm trying to convert a String of numbers that are separated by

10 messages 2010/12/28

[#376153] Parsing the Ruby File — "Thillai S." <thillaiselvan@...>

Hai any one pls guide me...

15 messages 2010/12/30

Re: Ruby and science ?

From: David Masover <ninja@...>
Date: 2010-12-23 20:32:04 UTC
List: ruby-talk #375906
On Saturday, December 18, 2010 11:27:48 am Charles Oliver Nutter wrote:
> > About the only unintuitive thing I ever found was implementing a Java
> 
> > interface, and while it's somewhat unintuitive, it's still trivial:
> If you have suggestions for how to improve it, we'd love to hear them :)

Not really.

Put another way: Most Java constructs translate intuitively to Ruby, as soon 
as I just conceptually gave up on even trying to use generics, but Java can 
work with raw types, too, so that's not that big a leap.

Nearly everything I want to do with JRuby and Java, I don't have to go to the 
docs, it just does what I'd expect:

require 'java'
import java.util.AbstractCollection
import java.util.ArrayList

class MyCollection < AbstractCollection
  def initialize
    super
    @coll = ArrayList.new
    @coll << 1
    @coll << 2
    @coll << 3
  end
  def iterator
    @coll.iterator
  end
  def size
    @coll.size
  end
end

Not only does that give me the stuff I wanted from AbstractCollection, but 
Java "knows" it's a working collection, so I can do this:

import java.util.Collections
c = Collections.unmodifiableCollection MyCollection.new
i = c.iterator
i.next    # returns 1
i.remove  # throws java.lang.UnsupportedOperationException

Basically, by knowing Java and Ruby, and looking at the Javadoc for various 
Collections-related stuff, I was able to write the above without knowing a 
single thing about JRuby other than that I have to "require 'java'" first.

So maybe it's just me, but the first time I actually had to Google for how 
JRuby does something was when it wasn't immediately obvious that I needed:

> >  include Comparator

That's about the closest you could map that onto Ruby, but unlike the 
previous, it's not a perfect match, because Ruby doesn't have interfaces, or 
really anything like them. In Ruby, if I'm going to completely implement 
Comparator, there's no reason I should ever have to include Comparator.

I don't really see a good way around that, though. Plus, this stuff is cool:

> Or this may work too (I don't remember PriorityQueue's API):
> 
> pq = PriorityQueue.new(11) do |a, b|
>   a.to_s <=> b.to_s
> end

That does work.

So this isn't a complaint, really. How could I complain when actually learning 
about JRuby gives me even easier interfaces than I'd expect?

> Oracle's actions relating to Java have all been political. At the same
> time people publish that they're fighting with Apache or Google, they
> are also getting IBM (GPL-haters) and Apple (not big OSS contributors)
> to collaborate on the GPLed OpenJDK, and making concrete plans for
> OpenJDK to continue beyond Java 8.

...at the same time as they're also making things difficult for anyone who 
wants to start an implementation of Java other than OpenJDK. The fact that 
Ruby has MRI (1.8 and 1.9), JRuby, MacRuby, and others is a _strength_. There 
really only is the one implementation of Java.

The fact that OpenJDK exists and is GPL'd helps me sleep better at night, but 
the fact that Oracle is suing people over patents makes me wonder how useful 
the GPL actually is in this case. It's kind of like x264 being GPL'd -- 
doesn't make H.264 any more open.

> As far as *using* Java, nothing has changed for the worse in the past year.

Right, and I am using it (and JRuby).

It's just the long-term stuff that scares me. I suppose it's not actually a 
change for the worse given Sun always had the ability to do the stuff Oracle's 
doing now, but every now and then, it looks as though Oracle might actually be 
clueless (or evil?) enough to run Java into the ground for a short-term 
profit.

I doubt it's going to happen, but I do try to keep enough of my code portable 
that a switch back to MRI would be possible, if incredibly painful.

In This Thread