From: Learning Ruby <learningruby@...>
Date: 2006-11-03T22:30:22+09:00
Subject: Re: Output not clear

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On 11/3/06, Rimantas Liubertas <rimantas@gmail.com> wrote:
>
> >   def withdraw(amt)
> >     @bal = balance
> >     if ((@bal - amt) > 500.00)
> >       balance = @bal - amt
> >       puts balance.to_s
> >     else
> >       puts 'No Balance'
> >     end
> >   end
> > end
> >
> > s = Savings.new('Pete',65241884,5000.00)
> > s.deposit(500.00)
> > s.withdraw(200.00)
> > puts s.balance.to_s
> >
> > The output I get is:
> >
> > >ruby accounts.rb
> > 5500.0
> > 5300.0
> > 5500.0
> > >Exit code: 0
> >
> > I thought that the last line puts s.balance.to_s would have displayed
> 5300.0.
> > Why is this 5500.0 ?
>
>
> Because you do not change @balance in your withdraw method.
>
> Regards,
> Rimantas
>

More confusion. I thought that the statement balance = @bal - amt in the
withdraw method is actually the set method for the @balance variable of the
Accounts class. Is not the set method inherited in the Savings class?

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