account_example.rb

#Undef loc var>!

class Account
    attr_reader :name
    attr_reader :balance
    
    def initialize(name, balance=100)
        @name = name
        @balance = balance
    end
    
    private
    
    def pin
        @pin = 1234
    end
    
    def pin_error
        "Access denied: incorrect PIN."
    end

    def overdraft_error
        "Overdraft is not possible on your account!"
    end
    
    public
    
    def display_balance(pin_number)
        return pin_error if pin_number != pin
        return "Balance :$#{@balance}"
    end
    
    def withdraw(pin_number, amount)
        return pin_error if pin_number != pin
        return overdraft_error if amount > balance
        @balance -= amount
    end

    def deposit(pin_number, amount)
        pin_number == pin ? @balance += amount : pin_error
    end

    def f_withdraw(w_amount)
       self.withdraw(1234, w_amount)
   end
end

checking_account = Account.new("Mihail",100000)

while true

    puts "Choose an action:"
    puts "1 - Withdraw"
    puts "2 - Deposit"
    puts "3 - Display Balance"
    puts "4 - Quit\n"

    choice = gets.chomp

    case choice
    when "1"
       puts "What amount would you like to withdraw?\n"
       w_amount = gets.chomp
       puts "Withdrew #{w_amount}. New balance: $#{checking_account.withdraw(1234, w_amount.to_i)}."
   when "2"
       puts "What amount would you like to deposit?\n"
       w_amount = gets.chomp
    puts "Deposited #{w_amount}. New balance: $#{checking_account.deposit(1234, w_amount.to_i)}."
when "3"
   puts checking_account.display_balance(1234)
when "4"
   break
else 
   puts "Invalid Choice"
end
end