---
# System prepended metadata

title: Question

---

# Question
Implement the function `retrieveAddress` using the methods `getStreet1`, `getStreet2`, and `getStreet3` to create an `Address`.
```scala


case class Address(
  street1: String,
  street2: Option[String],
  street3: Option[String]
)


def fun() = {
    
}
Try[A] = Either[Throwable, A]
Either[NoCustomerAddress, Address]

def retrieveAddress: Try[Address] = {
    Try(getStreet1()) map { street1 => 
        Address(street1, Try(getStreet2()).toOption, Try(getStreet3()).toOption)
    }
    

    for {
        street1 <- getStreet1()
    } yield Address(street1, Try(getStreet2()).toOption, Try(getStreet3()).toOption)
    
    // TODO: Implement
    
}


// =======================================================================  
// LIBRARY METHODS 
// =======================================================================
/**
  * Retrieves the main street address.
  * @throws RuntimeException if empty
  */
def getStreet1: String = {
  // implementation
}
/**
  * Retrieves additional street address line 2.
  * @throws RuntimeException if empty
  */
def getStreet2: String = {
  // implementation
}
/**
  * Retrieves additional street address line 3.
  * @throws RuntimeException if empty
  */
def getStreet3: String = {
  // implementation
}