Implementation of C# Dictionary class

Implementation of C# Dictionary class: Add() method

Program.cs

using System.Collections.Generic;

Dictionary<long, string> dict = new Dictionary<long, string>();
dict.Add(25622348989, "James Moore");
dict.Add(25622348990, "Donald Taylor");
dict.Add(25622348991, "Edward Parkar");
dict.Add(25622348992, "Ryan Bakshi");

foreach (KeyValuePair<long, string> kv in dict)
{
    Console.WriteLine("Account No: {0}, Name: {1}", kv.Key, kv.Value);
}
Console.WriteLine("Size: " + dict.Count);

Output

codeaft@codeaft:~/csharp$ dotnet run
Account No: 25622348989, Name: James Moore
Account No: 25622348990, Name: Donald Taylor
Account No: 25622348991, Name: Edward Parkar
Account No: 25622348992, Name: Ryan Bakshi
Size: 4
codeaft@codeaft:~/csharp$

Implementation of C# Dictionary class: ContainsKey() and ContainsValue() methods

Program.cs

using System.Collections.Generic;

Dictionary<long, string> dict = new Dictionary<long, string>();
dict.Add(25622348989, "James Moore");
dict.Add(25622348990, "Donald Taylor");
dict.Add(25622348991, "Edward Parkar");
dict.Add(25622348992, "Ryan Bakshi");

Console.WriteLine(dict.ContainsKey(25622348991));
Console.WriteLine(dict.ContainsValue("Edward Taylor"));

Output

codeaft@codeaft:~/csharp$ dotnet run
True
False
codeaft@codeaft:~/csharp$

Implementation of C# Dictionary class: Remove() and Clear() methods

Program.cs

using System.Collections.Generic;

Dictionary<long, string> dict = new Dictionary<long, string>();
dict.Add(25622348989, "James Moore");
dict.Add(25622348990, "Donald Taylor");
dict.Add(25622348991, "Edward Parkar");
dict.Add(25622348992, "Ryan Bakshi");

dict.Remove(25622348991);
foreach (KeyValuePair<long, string> kv in dict)
{
    Console.WriteLine("Account No: {0}, Name: {1}", kv.Key, kv.Value);
}

dict.Clear();
if (dict.Count == 0)
{
    Console.WriteLine("Dictionary is empty now");
}

Output

codeaft@codeaft:~/csharp$ dotnet run
Account No: 25622348989, Name: James Moore
Account No: 25622348990, Name: Donald Taylor
Account No: 25622348992, Name: Ryan Bakshi
Dictionary is empty now
codeaft@codeaft:~/csharp$

Comments and Reactions

What Next?

Implementation of C# SortedDictionary class Implementation of C# HashSet class Implementation of C# SortedSet class

Codeaft

C# Programming