Ruby: Using instance variables from other classes

Question

I have the following code:

class Person

 attr_reader :name, :balance
 def initialize(name, balance=0)
    @name = name
    @balance = balance
    puts "Hi, #{name}. You have $#{balance}!"
 end
 end

class Bank

 attr_reader :bank_name
 def initialize(bank_name)
    @bank_name = bank_name
    puts "#{bank_name} bank was just created."
 end

 def open_account(name)
    puts "#{name}, thanks for opening an account at #{bank_name}!"
 end
 end

  chase = Bank.new("JP Morgan Chase")
  wells_fargo = Bank.new("Wells Fargo")
  me = Person.new("Shehzan", 500)
  friend1 = Person.new("John", 1000)
  chase.open_account(me)
  chase.open_account(friend1)
  wells_fargo.open_account(me)
  wells_fargo.open_account(friend1)

When I call chase.open_account(me) I get the result Person:0x000001030854e0, thanks for opening an account at JP Morgan Chase!. I seem to be getting the unique_id (?) and not the name I assigned to @name when I created me = Person.new("Shehzan", 500),. I've read a lot about class / instance variables and just can't seem to figure it out.

Jorge de los Santos · Accepted Answer · 2014-11-25 14:12:47Z

2

This is because you are passing an instance object assigned to the name variable. You have to do:

 def open_account(person)
    puts "#{person.name}, thanks for opening an account at #{bank_name}!"
 end

Or:

wells_fargo.open_account(friend1.name)

answered Nov 25, 2014 at 14:12

Jorge de los Santos

4,6431 gold badge22 silver badges38 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

ncwrch · Accepted Answer · 2014-11-25 14:13:11Z

0

Here you are passing an instance of Person, not a string.

  chase.open_account(me)

You have to either pass me.name or modify open_account method to call Person#name like this

def open_account(person)
  puts "#{person.name}, thanks for opening an account at #{bank_name}!"
end

answered Nov 25, 2014 at 14:13

ncwrch

5714 silver badges6 bronze badges

Comments

agugliotta · Accepted Answer · 2014-11-25 14:15:07Z

0

You passing an object to the open_account method

You need to do

def open_account(person)
  puts "#{person.name}, thanks for opening an account at #{bank_name}!"
end

answered Nov 25, 2014 at 14:15

agugliotta

655 bronze badges

Collectives™ on Stack Overflow

Ruby: Using instance variables from other classes

3 Answers 3

Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related