Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.java.programmer > #36446 > unrolled thread

hash map

Back to article view | Back to comp.lang.java.programmer

Contents

  hash map pablo <pa24959122@gmail.com> - 2017-04-16 11:53 -0700
    Re: hash map Martin Gregorie <martin@address-in-sig.invalid> - 2017-04-16 19:10 +0000
    Re:hash map omegajunior <omegajunior@protonmail.com> - 2017-04-16 17:11 -0400
      Re: hash map pablo <pa24959122@gmail.com> - 2017-04-17 04:31 -0700
    Re: hash map Eric Douglas <e.d.programmer@gmail.com> - 2017-04-17 05:11 -0700
      Re: hash map pablo <pa24959122@gmail.com> - 2017-04-17 05:32 -0700
        Re: hash map Eric Douglas <e.d.programmer@gmail.com> - 2017-04-17 05:58 -0700
        Re: hash map Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-04-17 09:10 -0400
          Re: hash map pablo <pa24959122@gmail.com> - 2017-04-17 06:53 -0700
            Re: hash map Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-04-17 10:15 -0400
              Re: hash map pablo <pa24959122@gmail.com> - 2017-04-17 07:25 -0700
                Re: hash map Eric Douglas <e.d.programmer@gmail.com> - 2017-04-17 07:46 -0700
                Re: hash map Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-04-17 10:54 -0400
                  Re: hash map pablo <pa24959122@gmail.com> - 2017-04-17 08:29 -0700
                    Re: hash map Eric Douglas <e.d.programmer@gmail.com> - 2017-04-17 08:44 -0700
                    Re: hash map Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-04-17 12:07 -0400
                      Re: hash map pablo <pa24959122@gmail.com> - 2017-04-17 09:32 -0700
                        Re: hash map Martin Gregorie <martin@address-in-sig.invalid> - 2017-04-17 23:14 +0000
                          Re: hash map Arne Vajhøj <arne@vajhoej.dk> - 2017-04-17 20:22 -0400
                            Re: hash map Martin Gregorie <martin@address-in-sig.invalid> - 2017-04-18 01:20 +0000
                              Re: hash map Arne Vajhøj <arne@vajhoej.dk> - 2017-04-18 20:01 -0400
                                Re: hash map Martin Gregorie <martin@address-in-sig.invalid> - 2017-04-19 09:02 +0000
                            Re: hash map Eric Douglas <e.d.programmer@gmail.com> - 2017-04-18 04:54 -0700
                              Re: hash map Arne Vajhøj <arne@vajhoej.dk> - 2017-04-18 20:03 -0400
                                Re: hash map Martin Gregorie <martin@address-in-sig.invalid> - 2017-04-19 08:55 +0000
                                Re: hash map Eric Douglas <e.d.programmer@gmail.com> - 2017-04-19 04:45 -0700
                              Re: hash map Arne Vajhøj <arne@vajhoej.dk> - 2017-04-18 20:05 -0400

Page 2 of 2 — ← Prev page 1 [2]

#36488

On 4/17/2017 9:20 PM, Martin Gregorie wrote:
> On Mon, 17 Apr 2017 20:22:50 -0400, Arne Vajhøj wrote:
>> On 4/17/2017 7:14 PM, Martin Gregorie wrote:
>>> I know this is off-topic for this newsgroup, but if I knew any book
>>> that covered programming in Java as well as "K&R C ed. 2" covers C I'd
>>> have recommended that.
>>
>> If one was to learn a simpler procedural language before going for a
>> more complex object oriented language, then I would suggest Pascal not
>> C.
>
> Fair enough, but can you recommend any readily obtainable Pascal book
> that's as good as either edition of the K&R C book? Some of the O'Reilly
> books come close but that's about it.

Been some years since I was into Pascal intro books. Probably some
years since there has really been a market for Pascal intro books.

So I don't know what books are available.

I just believe that Pascal is an excellent language
for learning basic control structures, simple data structure
and algorithms.

Arne

[toc] | [prev] | [next] | [standalone]

#36492

On Tue, 18 Apr 2017 20:01:10 -0400, Arne Vajhøj wrote:

> I just believe that Pascal is an excellent language for learning basic
> control structures, simple data structure and algorithms.
> 
No disagreement here - I have a copy of 'Software Tools in Pascal' as 
well as Sedgewick's "Algorithms", which also uses Pascal. Both books have 
very readable Pascal code in them. 

I've implemented all the code in 'Software Tools' in PL/9, a derivative 
of PL/M, which both used to be common on early 8-bit machines, and 
implemented bits of Sedgewick in C. Both gave almost 1:1 statement 
correspondence with the Pascal originals and were very easy to do. 

The same is probably true for Pascal->Java as well.
  

-- 
martin@   | Martin Gregorie
gregorie. | Essex, UK
org       |

[toc] | [prev] | [next] | [standalone]

#36485

On Monday, April 17, 2017 at 8:22:58 PM UTC-4, Arne Vajhøj wrote:
> If one was to learn a simpler procedural language before going
> for a more complex object oriented language, then I would suggest
> Pascal not C.
> 
> Arne

I would suggest BASIC.  That's what we learned in 8th grade.

[toc] | [prev] | [next] | [standalone]

#36489

On 4/18/2017 7:54 AM, Eric Douglas wrote:
> On Monday, April 17, 2017 at 8:22:58 PM UTC-4, Arne Vajhøj wrote:
>> If one was to learn a simpler procedural language before going
>> for a more complex object oriented language, then I would suggest
>> Pascal not C.
>
> I would suggest BASIC.  That's what we learned in 8th grade.

VB.NET is a very complex language.

VB6 is a somewhat complex language.

And more primitive Basic dialects (GWBasic and similar)
does not lean themselves as well to teaching good
structured code.

Obviously I may have missed something in between.

Arne

[toc] | [prev] | [next] | [standalone]

#36491

On Tue, 18 Apr 2017 20:03:43 -0400, Arne Vajhøj wrote:

> And more primitive Basic dialects (GWBasic and similar)
> does not lean themselves as well to teaching good structured code.
>
Here's an interesting one: https://projects.drogon.net/rtb/

Known as Return To Basics (rtb), it isn't really Basic but is a line 
numberless, structured interactive language that is aimed at doing the 
same job. It is implemented as a P-coded interpretive system and was 
developed on, and currently runs on, a RaspberryPi. As implemented, its a 
graphical interpreter: use your favourite editor to write rtb programs 
and then use the rtb interpreter to run them, complete with its built in 
graphics package which uses traditional, early Spectrum/CoCo/Trash 80/
Apple II style graphics.

I've only played with it briefly, but it looks like a reasonable teaching 
language, and certainly a lot better than the likes of Scratch.


-- 
martin@   | Martin Gregorie
gregorie. | Essex, UK
org       |

[toc] | [prev] | [next] | [standalone]

#36493

On Tuesday, April 18, 2017 at 8:03:51 PM UTC-4, Arne Vajhøj wrote:
> And more primitive Basic dialects (GWBasic and similar)
> does not lean themselves as well to teaching good
> structured code.
> 
> Obviously I may have missed something in between.
> 
> Arne

I'm not sure what the most primitive BASIC was but we wrote it on TRS80s.  It had the ugly GOTO verb, otherwise worked fine for teaching the basics of variable assignment type stuff.  Since it was the first thing I learned (COBOL the second), I'm not sure what else is great for someone who has never coded before.  I have tried to teach Java to one or two who have never coded before and it seems like it may not be the easiest language for beginners.

I don't know if the BlueJ editor does anything to help you code or if they use it in schools because it makes you check everything manually.  Eclipse is great with the code assist, fixing indentation for you, highlighting missed braces kind of stuff.  If you can't get your code properly indented to match up the braces and parentheses you're probably not going far with Java.  That's step one.  Step two is getting proper variables, with proper scopes and naming conventions.

[toc] | [prev] | [next] | [standalone]

#36490

On 4/18/2017 10:21 AM, Stefan Ram wrote:
> Eric Douglas <e.d.programmer@gmail.com> writes:
>> On Monday, April 17, 2017 at 8:22:58 PM UTC-4, Arne Vajhøj wrote:
>>> If one was to learn a simpler procedural language before going
>>> for a more complex object oriented language, then I would suggest
>>> Pascal not C.
>> I would suggest BASIC.  That's what we learned in 8th grade.
>
>   I teach object-oriented languages like C++, Java, C#, and
>   Python.
>
>   The way I do this, is to teach gradually incrementing
>   sub-languages.

That is another way.

>   Programs look like
>
> public final class Main
> { public static void main( final java.lang.String[] args )
>   { java.lang.System.out.println
>     ( 1+2*3 ); }}

But why not teach them to write Java that looks like Java!?!?

Arne

[toc] | [prev] | [standalone]

Page 2 of 2 — ← Prev page 1 [2]

Back to top | Article view | comp.lang.java.programmer

csiph-web