Hash Set
using System;
using System.Collections.Generic;
class HashSetDemo
{
static void Main(string[] args)
{
HashSet<int> hashset = new HashSet<int>(); // Declaring a Hash Set
// Adding values to HashSet.
hashset.Add(1);
hashset.Add(2);
hashset.Add(3);
hashset.Add(4);
// For displaying values in a HashSet,we can use a foreach loop
int limit = hashset.Count; // Gets the size of HashSet
Console.WriteLine("Size of hashset: " + limit);
Console.WriteLine("Using foreach loop");
foreach (int i in hashset)
{
Console.WriteLine(i);
}
Console.ReadLine();
}
}
Output:
Size of hashset: 4
using foreach loop
1
2
3
4