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CodeSignal

Revisiting Scala Maps and Their Practical Application

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Overview

Deepen your understanding and use of map data structures in Scala, focusing on their application in counting and aggregation. This course will strengthen your comprehension of efficient data access and manipulation using maps.

Syllabus

  • Unit 1: Introduction to HashMaps in Scala
    • Update Library Catalog Title
    • Print the Book Title Using Maps in Scala
    • Check Book Availability in Library Catalog
    • Updating and Accessing Elements in Scala Maps
    • Understanding Scala Maps by Updating a Library Catalog
  • Unit 2: Counting with HashMaps in Scala
    • Counting Book Genres with Scala Maps
    • Tracking Book Copies in a Library System
    • Counting Book Returns in a Library
    • Count Letter Frequencies in a Sentence
    • Counting Book Copies in a Library Using Scala
  • Unit 3: Data Aggregation Using Maps in Scala
    • Calculate Average Quantity of Grocery Shop Inventory
    • Find and Fix the Bug in Inventory Calculation
    • Grocery Shop Inventory Statistics
    • Comparing Stock Levels to Average Inventory
    • Determining Maximum Inventory Item
  • Unit 4: Applying Maps to Real-World Challenges in Scala
    • Decrement Book Copies Conditionally in Library System
    • Spot the Bug in Library Catalog ID Display
    • Manage Library Inventory Using HashMap
    • Count Word Appearances in Scala
    • Library Management System using HashMaps

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