Loop over a collection with while

The while construct causes the block of code between its curly braces to be executed repeatedly until the boolean expression at the top becomes false.

In the previous lesson, you created the body of the pointsToBust function to calculate the specific number of points. In this exercise, you'll write a while loop that loops through five hands (one for each player in the game) and finds the number of points to bust for each. Writing this while loop instead of calling the pointsToBust function five times makes our program more concise and readable.

本练习是课程的一部分

Introduction to Scala

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练习说明

Define a counter variable, i. Set it equal to zero to start.
Using the counter variable i, write a while loop that proceeds through the loop hands.length times.
Find and print the winning hand's value for the ith hand.
Increment the counter variable.

交互式实操练习

通过完成这段示例代码来试试这个练习。

// Define counter variable


// Create list with five hands of Twenty-One
var hands = List(16, 21, 8, 25, 4)

// Loop through hands
___ ___ {
  // Find and print number of points to bust
  println(___)
  // Increment the counter variable
  
}

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