C# | Union of SortedSet to a collection - Coding

SortedSet class represents the collection of objects in sorted order. This class comes under the System.Collections.Generic namespace. SortedSet<T>.UnionWith(IEnumerable<T>) method is used to modify the current SortedSet<T> object so that it contains all elements that are present in either the current object or the specified collection.

Properties:

In C#, SortedSet class can be used to store, remove or view elements.
It maintains ascending order and does not store duplicate elements.
It is suggested to use SortedSet class if you have to store unique elements and maintain ascending order.

Syntax:

mySortedSet1.UnionWith(mySortedSet2);

Here, mySortedSet1 and mySortedSet2 are two SortedSet objects.

Exception: This method will give ArgumentNullException if the SortedSet is null.

Below given are some examples to understand the implementation in a better way:

Example 1:

// C# code to get the Union of 2 SortedSets 
using System; 
using System.Collections.Generic; 
  
class GFG { 
  
    // Driver code 
    public static void Main() 
    { 
  
        // Creating a SortedSet of integers 
        SortedSet<int> mySortedSet1 = new SortedSet<int>(); 
  
        // adding elements in mySortedSet1 
        mySortedSet1.Add(2); 
        mySortedSet1.Add(4); 
        mySortedSet1.Add(6); 
        mySortedSet1.Add(8); 
        mySortedSet1.Add(10); 
  
        // Creating a SortedSet of integers 
        SortedSet<int> mySortedSet2 = new SortedSet<int>(); 
  
        // adding elements in mySortedSet 
        mySortedSet2.Add(4); 
        mySortedSet2.Add(5); 
        mySortedSet2.Add(7); 
        mySortedSet2.Add(8); 
        mySortedSet2.Add(9); 
  
        Console.WriteLine("The union of mySortedSet1 and mySortedSet2 is: "); 
  
        mySortedSet1.UnionWith(mySortedSet2); 
  
        // To display the union of mySortedSet1 and mySortedSet2 
        foreach(int i in mySortedSet1) 
        { 
            Console.WriteLine(i); 
        } 
    } 
} 

Output:

The union of mySortedSet1 and mySortedSet2 is: 
2
4
5
6
7
8
9
10

Example 2:

// C# code to get the Union of 2 SortedSets 
using System; 
using System.Collections.Generic; 
  
class GFG { 
  
    // Driver code 
    public static void Main() 
    { 
  
        // Creating a SortedSet of strings 
        SortedSet<string> mySortedSet1 = new SortedSet<string>(); 
  
        // adding elements in mySortedSet1 
        mySortedSet1.Add("Geeks"); 
        mySortedSet1.Add("for"); 
        mySortedSet1.Add("Geeks"); 
        mySortedSet1.Add("Noida"); 
        mySortedSet1.Add("Data Structures"); 
  
        // Creating a SortedSet of strings 
        SortedSet<string> mySortedSet2 = new SortedSet<string>(); 
  
        // adding elements in mySortedSet 
        mySortedSet2.Add("Geeks"); 
        mySortedSet2.Add("Java"); 
        mySortedSet2.Add("Geeks Classes"); 
        mySortedSet2.Add("C++"); 
        mySortedSet2.Add("Noida"); 
  
        Console.WriteLine("The union of mySortedSet1 and mySortedSet2 is: "); 
  
        mySortedSet1.UnionWith(mySortedSet2); 
  
        // To display the union of mySortedSet1 and mySortedSet2 
        foreach(string str in mySortedSet1) 
        { 
            Console.WriteLine(str); 
        } 
    } 
} 

Output:

The union of mySortedSet1 and mySortedSet2 is: 
C++
Data Structures
for
Geeks
Geeks Classes
Java
Noida

Reference:

https://docs.microsoft.com/en-us/dotnet/api/system.collections.generic.sortedset-1.unionwith?view=netcore-2.1

Reffered: https://www.geeksforgeeks.org

Related
C# \| Namespaces
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C# \| Check if HashSet and the specified collection contain the same elements
C# \| Adding an element to the List
C# \| Removing the specified element from the List

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