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Introduction to Scala
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Зміст курсу

Introduction to Scala

Introduction to Scala

1. Getting Started
Why Scala?How Scala Works?Scala’s SyntaxWriting Your First ProgramWriting Comments
2. Variables and Data Types
Basic Data TypesChallenge: Specify the Data TypesVariable Type InferenceMutable and Immutable Variables/Data TypesArithmetic OperatorsOrder of OperationsChallenge: Calculate Customer Acquisition CostAssignment OperatorsMore about CharSummary Quiz
3. Conditional Statements and Loops
If-Else StatementIf-Else ChainCombining Multiple ConditionsWhile LoopDo-while LoopFor LoopChallenge: Nesting in LoopsSummary Quiz
4. Arrays
What is an Array?Iterating in ArraysChallenge: Fill an ArrayTwo-Dimensional ArraysIterating in 2D ArraysChallenge: Fill a 2D ArraySummary Quiz
5. Strings
What is a String?Iterating in StringsCommonly Used String MethodsChallenge: Applying String Methods in PracticeSummary Quiz

bookChallenge: Fill a 2D Array

Task

Your task create a 3x2 2D array of integers named matrix and fill it with elements which have the value of equal to i + j, where i is the row index, and j is the column index. Use two for loops with the loop variables named i and j to iterate over its indices.

java

Main

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object Main {
  def main(args: Array[String]): Unit = {
    var ___ = Array.___[___](___, ___)  // Create a 3x2 2D array
    for (___ ___ matrix.___) {  // Iterate over the row indices
      for (___ ___ matrix(___).___) {  // Iterate over the columns indices
        matrix(___)(___) = ___  // Assign the sum of indices to the current element
        print(matrix(___)(___) + " ")
      }
      println()
    }
  }
}

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