uml_entity.puml

@startuml
' substitutes visibility icons with characters
skinparam classAttributeIconSize 0
' don't show the (I) or (C) icons in class names
hide circle

class SavingsAccount {
 -{static}logger: Logger
 ~interestRate: double
 +monthEnd()
}

class CheckingAccount {
 +{static}logger: Logger
 -checkNumber: int
 +writeCheck(name: String, amount: double)
 +monthEnd()
}

class Register {
 ~logger: Logger
 ~entryList: List< <String, Double> >
 +add(entryName: String, amount: Double)
 +getEntries(): List< <String, Double> >
}

class Owner {
 -name: String
}

class Account << abstract >> {
 +{static}logger: Logger
 -balance: double
 #name: String
 #owner: Owner
 #register: Register
 #minimumBalance: double
 #belowMinimumFee: double
 +deposit(amount: double)
 +deposit(amount: double, registerEntry: String)
 +withdraw(amount: double)
 +withdraw(amount: double, registerEntry: String)
 +generateStatement(): List<String>
 +getRegisterEntries(): List< <String, Double> >
 +{abstract}monthEnd()
}

class Runner {
 +{static}main(args: String[])
}

Account <|-- SavingsAccount
Account <|-- CheckingAccount
Account --o Register
Account --* Owner

Runner --* SavingsAccount
Runner --* CheckingAccount

note as N1
  Note: Simple getters/setters
  and constructors are
  omitted from classes
end note
@enduml