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学ぶ Challenge: Dictionaries | Section
C# Object-Oriented Structures

bookChallenge: Dictionaries

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Fill in the blanks to declaring a new dictionary called book, also for adding and outputting data. Use implicit declaration for creating the dictionary.

index.cs

index.cs

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using System; using System.Collections.Generic; namespace ConsoleApp { class Program { static void Main(string[] args) { // Declaring a new empty dictionary ___ ___ = new Dictionary<string, string>(); // Adding data to the dictionary ___("name", "The Hobbit"); ___("author", "J. R. R. Tolkien"); ___("publication date", "21 September 1937"); // Outputting data Console.WriteLine("Book Name: " + ___); Console.WriteLine("Author: " + ___); Console.WriteLine("Publication Date: " + ___); } } }
  1. Use the Add method for adding data to the dictionary.
  2. You can access values from the dictionary using the dictionaryName[keyName] syntax.
index.cs

index.cs

copy
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using System; using System.Collections.Generic; namespace ConsoleApp { class Program { static void Main(string[] args) { // Declaring a new empty dictionary var book = new Dictionary<string, string>(); // Adding data to the dictionary book.Add("name", "The Hobbit"); book.Add("author", "J. R. R. Tolkien"); book.Add("publication date", "21 September 1937"); // Outputting data Console.WriteLine("Book Name: " + book["name"]); Console.WriteLine("Author: " + book["author"]); Console.WriteLine("Publication Date: " + book["publication date"]); } } }
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