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.
This exercise is part of the course
Introduction to Scala
Exercise instructions
- 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
fourSpadestothreeSpades, then click "Submit Answer".
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
// Point value of a player's hand
val hand = sevenClubs + kingDiamonds + fourSpades
// Congratulate the player if they have reached 21