Part 3: Keeping Our Balance

Code Samples

class BankAccount
  attr_reader :name

  def initialize(name)
    @name = name
    @transactions = []
    add_transaction("Beginning Balance", 0)
  end

  def credit(description, amount)
    add_transaction(description, amount)
  end

  def debit(description, amount)
    add_transaction(description, -amount)
  end

  def add_transaction(description, amount)
    @transactions.push(description: description, amount: amount)
  end

  def balance
    balance = 0.0
    @transactions.each do |transaction|
      balance += transaction[:amount]
    end
    return balance
  end

  def to_s
    "Name: #{name}, Balance: #{sprintf("%0.2f", balance)}"
  end
end

bank_account = BankAccount.new("Jason")
bank_account.credit("Paycheck", 100)
bank_account.debit("Groceries", 40)
puts bank_account