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if and printing

The if/else control structure allows you to chose the way your program control flows. You don't always need else, as you'll experience in this exercise.

If a player reaches 21 points, they'd probably appreciate a little recognition!

In this exercise, you'll use the if keyword to print a congratulations when a player's hand equals 21. Remember, when there is no else, use curly braces for good Scala style! The card variables you need are already defined.

Diese Übung ist Teil des Kurses

Introduction to Scala

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Anleitung zur Übung

  • Write code that accomplishes the following: if a player's hand is equal to 21, print "Twenty-One!" to output.
  • Click "Run Code" and observe the output.
  • Change fourSpades to threeSpades, then click "Submit Answer".

Interaktive Übung

Versuche dich an dieser Übung, indem du diesen Beispielcode vervollständigst.

// Point value of a player's hand
val hand = sevenClubs + kingDiamonds + fourSpades

// Congratulate the player if they have reached 21
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