package fp101.tp03.option
object ExerciceOptionPerson {
/**
*
* email is not mandatory
*
*/
class Person(val name: String, val age: Int, val email: Option[String]) {
override def toString = s"Person($name, $age, $email)"
}
object Person { def apply(name: String, age: Int, email: Option[String]) = new Person(name, age, email) }
object PersonDao {
private val persons = Map(
1 -> Person("John Snow", 25, Some("john.snow@winterfell.we")),
3 -> Person("Sandor Clegane", 40, None))
def findById(id: Int): Option[Person] = persons.get(id)
def findAll = persons.values
}
/**
*
* return the name of p otherwise "N/A"
* using only if, else and Option methods
*/
def getName(p: Option[Person]): String = ???
/**
* Write the same function that bellow using only map and getOrElse
*/
def getNameUsingMap(p: Option[Person]): String = ???
/**
