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

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)

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

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

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

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

Collectives™ on Stack Overflow

Ruby: Using instance variables from other classes

3 Answers 3

Comments

Comments

Comments

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Related