Puts return

Ruby
1

Hello guys, i’m new in ruby and i’m trying to create an Address Book.
(I’m from Brasil)
When i put the book to print
“puts lista” #lista is the Address Book
the method to_s of the AddresBook class is like this:
"def to_s
puts “Lista Telefonica”
puts "Numero de Contatos: " + @qtContatos.to_s
@persons.each do |pessoa|
#persons is an array of a Class Person that have it’s own to_s method
puts pessoa
puts “”
end
end
"

It’s working well, but when I run it in the cmd:
“C:\Users\Dudu.gem\exe>ruby ListaTelefonica.rb”
(I’m using Windows 7 with Gems version “1.3.5”)

The print Returns the & (address) of each thing I print…
example:
"
Nome: My Name
Email: [email protected]
Fone: XXXXXXX
Endereco:
Rua NumSei, 321
Cidade: Anyone
Pais: Brasil
#Address:0x2803ae0
#Pessoa:0x2803b20

#AddressBook:0x28043a0
"

How can I take this Address out??
this “#AddressBook:0x28043a0” and the others
:S
Thanks!!!

2

up?

3

Eduardo R. wrote:

up?

Be patient.

Best,

Marnen Laibow-Koser
http://www.marnen.org
[email protected]

4

On Dec 23, 2009, at 3:24 PM, Eduardo R. wrote:

puts pessoa
puts “”
end

First of all, method to_s() should return a string, not print it. So,
remove puts() from to_s() and simply return a string. In your case,
return from to_s() is the content of your @persons array, it gets
printed by your “puts lista” statement.

You can do something like the following:

def to_s
[
“Lista Telefonica”,
“Numero de Contatos: #{@qtContatos}”,
@persons.map { |pessoa|
pessoa.to_s
}
].join("\n")
end

Then, if to_s() for objects in your @persons array is defined
accordingly, you should have a nice looking output.

Gennady.

5

Eduardo R. wrote:

Thanks for the help =D
And i’ll try to understand how this works… couse i’m a beginner in
ruby! hehehe
Bye!

def to_s
[
“Lista Telefonica”,
“Numero de Contatos: #{@qtContatos}”,
@persons.map { |pessoa|
pessoa.to_s
}
].join("\n")
end

class x
def y(@y1,@y2)
end

def to_s
@y1
@y2
end
end

6

Thanks for the help =D
And i’ll try to understand how this works… couse i’m a beginner in
ruby! hehehe
Bye!

def to_s
[
“Lista Telefonica”,
“Numero de Contatos: #{@qtContatos}”,
@persons.map { |pessoa|
pessoa.to_s
}
].join("\n")
end

7

Thanks to u all =D
i’ll read a bit more about ruby to undersand everything
Hugs!