From: dblack@...
Date: 2002-12-11T23:35:17+09:00
Subject: Re: For (i=0;i>....) in Ruby?

Hi --

On Wed, 11 Dec 2002 stefanocheri@freenet.de wrote:

> Hello,
>
> how do i write this C++ source code in ruby:
>
> cout<<"Enter field length: ";
> cin>>Field;
>
> for(i=0;i<Max;i++)
> {
>   cout<<"Insert "<<i<<". Number:";
>   cin>>Field[i];
> }
>
> I hope it�s correct. The programme should do the following:
> 1. How many numbers do you wanna have?
> 2. Please enter number 1... 2... 3... etc. till the end.

Something like:

  print "Enter field length: "
  len = gets.chomp.to_i

  fields = []
  len.times do |i|
    print "Please enter number #{i+i}: "
    fields << gets.to_i
  end

or if you want that nice functional programming feel:

  fields = (0...len).map do |i|
    print "Please enter number #{i}: "
    gets.to_i
  end


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav