PositiveIntegerOrZero

PositiveIntegerOrZero(ushort | int) //constructor, throw Exception if int < 0
Value : ushort | int //property
ToString() : String => "9999" (value) // method

Patient // Encode disorders using bit operations

Patient(name: String, lastName: String) //constructor
Name : String
LastName: String
Disorders: String[] // (disorders as string array { "Programmer", "Tester", "Bipolar", ...  })
IsHealthy: boolean // (true: zero disorders, false: at least one disorder)
AddDisorder(disorderCode : ushort | short) : boolean // true : added (was not found), false : already has it
HasDisorder(disorderCode : ushort | short) : boolean // true: has it, false : does not has it
ToString() : "{name} {lastName} has {disorders}"; {disorders} => "disorderA, disorderB, disorderC, ..."

PatientList | IPatientList //interface

Size : PositiveIntegerOrZero // Property
Add(newPatient: Patient) : boolean //true : no estaba | false : estaba presente no se agrega
Contains(somePatient: Patient) : boolean
Remove(somePatient: Patient) : boolean //true : estaba | false : no estaba
All() : Patient[]

v1) PatientArrayList : IPatientList (java) implements PatientList //Array based

	PatientArrayList() // constructor

v2) PatientLinkedList : PatientList | IPatientList //Linked List Based

	PatientLinkedList() // constructor