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C#/.NET - Java HashMap equivalent

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In C#/.NET System.Collections.Generic.Dictionary class is the most closest to Java java.util.HashMap class.

Dictionary<TKey, TValue> class example

Dictionary<string, int> dictionary = new Dictionary<string, int>();

dictionary.Add("e", 1);
dictionary.Add("d", 3);
dictionary.Add("c", 2);
dictionary.Add("b", 5);
dictionary.Add("a", 4);

Console.WriteLine("Size: " + dictionary.Count + "\n");

foreach (KeyValuePair<string, int> entry in dictionary)
	Console.WriteLine("key=" + entry.Key + ", value=" + entry.Value);


Size: 5

key=e, value=1
key=d, value=3
key=c, value=2
key=b, value=5
key=a, value=4


  1. Dictionary<TKey,TValue> Class - Microsoft Docs
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