Updating arrays

Since arrays are mutable, the elements in them can be updated.

In the context of Twenty-One, this could mean adding to an element in the array if that player chooses to hit to get closer to 21.

In this exercise, you'll do just that. The card variables you need are already defined, as well as the hands array you created, parameterized, and initialized previously.

If you run the code more than once, you will keep adding to hands since arrays are mutable. Your final result will then be different from the expected solution. Reloading the page will reset the hands array.

Questo esercizio fa parte del corso

Introduction to Scala

Visualizza il corso

Istruzioni dell'esercizio

Add a fiveClubs to the first player's hand in hands.
Add a queenSpades to the second player's hand in hands.
Add a kingClubs to the third player's hand in hands.

Esercizio pratico interattivo

Prova a risolvere questo esercizio completando il codice di esempio.

// Initialize player's hand and print out hands before each player hits
hands(0) = tenClubs + fourDiamonds
hands(1) = nineSpades + nineHearts
hands(2) = twoClubs + threeSpades
hands.foreach(println)

// Add 5♣ to the first player's hand
___ = ___ + ___

// Add Q♠ to the second player's hand
___ = ___ + ___

// Add K♣ to the third player's hand
___ = ___ + ___

// Print out hands after each player hits
hands.foreach(println)

Modifica ed esegui il codice