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David Zmick

Arrays?

I have an array of SmallIntegers, and I need to multiply each object in the array by the next. Each object is a factor, and i need to get to the final number, then store that number in a variable and display it on the transcript.

display
    array do: [:in| self num: num * in. ].
    Transcript cr; show: 'The factors are: '; show: stream contents; cr.
    Transcript show: 'The final number is: '; show: num; cr.

the stream is on the array
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David Zmick
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Ben Goetter

Re: Arrays?

Use Collection>>inject:into:.

#(1 2 3 4 5) inject: 1 into: [ :acc :el | acc * el]
=> 120
#(1 2 3 4 5) inject: 0 into: [ :acc :el | acc + el]
=> 15

-------- Original Message --------
Subject: [Newbies] Arrays?
From: David Zmick <[hidden email]>
To: Squeak Beginners List <[hidden email]>
Date: Thu Mar 06 2008 16:15:39 GMT-0800 (Pacific Standard Time)
> I have an array of SmallIntegers, and I need to multiply each object
> in the array by the next. Each object is a factor, and i need to get
> to the final number, then store that number in a variable and display
> it on the transcript.

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Michael van der Gulik-2

Re: Arrays?

In reply to this post by David Zmick

On Fri, Mar 7, 2008 at 1:15 PM, David Zmick <[hidden email]> wrote:

I have an array of SmallIntegers, and I need to multiply each object in the array by the next. Each object is a factor, and i need to get to the final number, then store that number in a variable and display it on the transcript.

display
    array do: [:in| self num: num * in. ].
    Transcript cr; show: 'The factors are: '; show: stream contents; cr.
    Transcript show: 'The final number is: '; show: num; cr.

the stream is on the array

What is your question?

Gulik.

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David Zmick

Re: Arrays?

o nevermind, i figured it out.

display
    stream contents do: [:in| self num: num * in. ].
    Transcript cr; show: 'The factors are: '; show: stream contents; cr.
    Transcript show: 'The final number is: '; show: num; cr.

On Thu, Mar 6, 2008 at 6:47 PM, Michael van der Gulik <[hidden email]> wrote:

On Fri, Mar 7, 2008 at 1:15 PM, David Zmick <[hidden email]> wrote:
I have an array of SmallIntegers, and I need to multiply each object in the array by the next. Each object is a factor, and i need to get to the final number, then store that number in a variable and display it on the transcript.

display
    array do: [:in| self num: num * in. ].
    Transcript cr; show: 'The factors are: '; show: stream contents; cr.
    Transcript show: 'The final number is: '; show: num; cr.

the stream is on the array

What is your question?

Gulik.

--
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http://gulik.pbwiki.com/
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David Zmick
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