C# - ITERATING HASHSET

There are many ways by which we can Iterate a HashSet.

So we have a HashSet with values, Tom, John and C#.

Now, let us see the first and easiest way to iterate a HashSet.

Iterating a HashSet using for loop

Example :

using System.Collections.Generic;
    
public class MyApplication
{
    public static void Main(string[] args)
    {
        var x = new HashSet<string>(); 
        
        x.Add("Tom");
        x.Add("John");
        x.Add("C#");
        
        foreach (var i in x)  
        {  
            System.Console.WriteLine(i);  
        }
    }    
}

Output :

Tom
John
C#

Similarly, in the above code we have created a HashSet.

var x = new HashSet<string>();

And initialised to the variable x.

In the next line we have used the foreach loop to Iterate through the HashSet.

foreach (var i in x)
{
	System.Console.WriteLine(i);
}

Now, if we see the iterations of for loop,

foreach (var i in x)
{
	System.Console.WriteLine(i);
}

1st Iteration

In the first Iteration the first value of the HashSet x (i.e. Tom) is taken and put into the variable i.

And the print statement, prints the value of i.

Output :

Tom

2nd Iteration

Similarly, in the second Iteration the second value of the HashSet x (i.e. John) is taken and put into the variable i.

And the print statement, prints the value of i.

Output :

Tom
John

3rd Iteration

Similarly, in the third Iteration the third value of the HashSet x (i.e. C#) is taken and put into the variable i.

And the print statement, prints the value of i.

Output :

Tom
John
C#

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