class BankAccount
  attr_accessor :balance

  @@minimum_balance = 200

  def self.minimum_balance=(balance)
    @@minimum_balance = balance
  end

  def initialize(balance,name)
  if balance < @@minimum_balance
    raise ArgumentError.new("Error")
  else
    @balance = balance
    @name = name
  end
  end

  def deposit(deposit)
    @deposit = deposit
    @balance += @deposit
  end

  def withdraw(withdraw)
    @withdraw = withdraw
    @balance -= @withdraw
  end

  def transfer(transfer, account2)
    self.balance -= transfer
    account2.balance += transfer
  end

end