Introduction
The SortedSet<> class represents a collection of objects that is maintained in sorted order.The Hierarchy of this class is System.Collections.Generic.SortedSet<T>, where T is the type of elements in the set. In this article I explain how to create the SortedSet<> and how to perform the various methods and properties of this class.
Creation of the SortedSet<>
In order to create the SortedSet<> use the following lines:
SortedSet<string> sortedset = new SortedSet<string>();
SortedSet<int> sortedset1 = new SortedSet<int>();
Now before applying any property we should add some elements to the SortedSet that we created. So the next lines of code shows how we can add the elements to the SortedSet<>.
namespace SortedSet
{
class Program
{
static void Main(string[] args)
{
//create the SortedSet having string type of elements
SortedSet<string> sortedset = new SortedSet<string>();
//create the SortedSet having integer type of elements
SortedSet<int> sortedset1 = new SortedSet<int>();
//add the elements in the SortedSet having string type
sortedset.Add("Sunady");
sortedset.Add("Monday");
sortedset.Add("Tuesday");
sortedset.Add("Wednesday");
sortedset.Add("Thusday");
sortedset.Add("Friday");
sortedset.Add("Saturday");
//add the elements in the sortedSet having integer type
sortedset1.Add(1);
sortedset1.Add(40);
sortedset1.Add(25);
sortedset1.Add(10);
sortedset1.Add(20);
//display the elements of SortedList
Console.WriteLine("The elements in the SortedSet1:");
foreach (int i in sortedset1)
{
Console.WriteLine(i);
}
//display the elements of SortedList
Console.WriteLine("The elements in the SortedSet:");
foreach (string s in sortedset)
{
Console.WriteLine(s);
}
}
}
}
Output
![IMAGE1.jpg]()
In this example I add the integer type and string type values in any order, in other words, in an unsorted order, but when I run this project the values are automatically sorted because I use SortedSet<>.
Properties
Count: Gets the number of elements in the SortedSet<T>.For example,
namespace SortedSet
{
class Program
{
static void Main(string[] args)
{
//create the SortedSet having string type of elements
SortedSet<string> sortedset = new SortedSet<string>();
//create the SortedSet having integer type of elements
SortedSet<int> sortedset1 = new SortedSet<int>();
//add the elements in the SortedSet having string type
sortedset.Add("Sunady");
sortedset.Add("Monday");
sortedset.Add("Tuesday");
sortedset.Add("Wednesday");
sortedset.Add("Thusday");
sortedset.Add("Friday");
sortedset.Add("Saturday");
//add the elements in the sortedSet having integer type
sortedset1.Add(1);
sortedset1.Add(40);
sortedset1.Add(25);
sortedset1.Add(10);
sortedset1.Add(20);
//count the number of element in the SortedSet
Console.WriteLine("The number of element in the sortedset is:" + sortedset.Count());
//count the number of element in the SortedSet1
Console.WriteLine("The number of element in the sortedset is:" + sortedset1.Count());
}
}
}
Output
![IMAGE2.jpg]()
Max: Gets the maximum value in the SortedSet<T>. For example:
namespace SortedSet
{
class Program
{
static void Main(string[] args)
{
//create the SortedSet having string type of elements
SortedSet<string> sortedset = new SortedSet<string>();
//create the SortedSet having integer type of elements
SortedSet<int> sortedset1 = new SortedSet<int>();
//add the elements in the SortedSet having string type
sortedset.Add("Sunady");
sortedset.Add("Monday");
sortedset.Add("Tuesday");
sortedset.Add("Wednesday");
sortedset.Add("Thusday");
sortedset.Add("Friday");
sortedset.Add("Saturday");
//add the elements in the sortedSet having integer type
sortedset1.Add(1);
sortedset1.Add(40);
sortedset1.Add(25);
sortedset1.Add(10);
sortedset1.Add(20);
//The maximum number in the SortedSet
Console.WriteLine("The maximum element in SortedSet is:" + sortedset.Max());
//The maximum number in the SortedSet1
Console.WriteLine("The maximum element in SortedSet1 is:" + sortedset1.Max());
}
}
}
Output
![IMAGE3.jpg]()
Min: Gets the minimum value in the SortedSet<T>. For example:
namespace SortedSet
{
class Program
{
static void Main(string[] args)
{
//create the SortedSet having string type of elements
SortedSet<string> sortedset = new SortedSet<string>();
//create the SortedSet having integer type of elements
SortedSet<int> sortedset1 = new SortedSet<int>();
//add the elements in the SortedSet having string type
sortedset.Add("Sunady");
sortedset.Add("Monday");
sortedset.Add("Tuesday");
sortedset.Add("Wednesday");
sortedset.Add("Thusday");
sortedset.Add("Friday");
sortedset.Add("Saturday");
//add the elements in the sortedSet having integer type
sortedset1.Add(1);
sortedset1.Add(40);
sortedset1.Add(25);
sortedset1.Add(10);
sortedset1.Add(20);
//The minimum number in the SortedSet
Console.WriteLine("The minimum element in SortedSet is:" + sortedset.Min());
//The minimum number in the SortedSet1
Console.WriteLine("The minimum element in SortedSet1 is:" + sortedset1.Min());
}
}
}
Output
![image4.jpg]()
Methods
Clear(): Removes all elements from the set. For example:
namespace SortedSet
{
class Program
{
static void Main(string[] args)
{
//create the SortedSet having string type of elements
SortedSet<string> sortedset = new SortedSet<string>();
//create the SortedSet having integer type of elements
SortedSet<int> sortedset1 = new SortedSet<int>();
//add the elements in the SortedSet having string type
sortedset.Add("Sunady");
sortedset.Add("Monday");
sortedset.Add("Tuesday");
sortedset.Add("Wednesday");
sortedset.Add("Thusday");
sortedset.Add("Friday");
sortedset.Add("Saturday");
//add the elements in the sortedSet having integer type
sortedset1.Add(1);
sortedset1.Add(40);
sortedset1.Add(25);
sortedset1.Add(10);
sortedset1.Add(20);
//The number of items contains in the set
Console.WriteLine("The number of element in the sortedset is:" + sortedset.Count());
Console.WriteLine("The number of element in the sortedset is:" + sortedset1.Count());
//apply clear() method
sortedset.Clear();
sortedset1.Clear();
Console.WriteLine("The number of element after apply the clear method in the sortedset is:" + sortedset.Count());
Console.WriteLine("The number of element after apply the clear method in the sortedset is:" + sortedset1.Count());
}
}
}
Output
![IMAGE5.jpg]()
Contains(): Determines whether the set contains a specific element. For example:
namespace SortedSet
{
class Program
{
static void Main(string[] args)
{
//create the SortedSet having string type of elements
SortedSet<string> sortedset = new SortedSet<string>();
//create the SortedSet having integer type of elements
SortedSet<int> sortedset1 = new SortedSet<int>();
//add the elements in the SortedSet having string type
sortedset.Add("Sunady");
sortedset.Add("Monday");
sortedset.Add("Tuesday");
sortedset.Add("Wednesday");
sortedset.Add("Thusday");
sortedset.Add("Friday");
sortedset.Add("Saturday");
//add the elements in the sortedSet having integer type
sortedset1.Add(1);
sortedset1.Add(40);
sortedset1.Add(25);
sortedset1.Add(10);
sortedset1.Add(20);
//apply contain method
Console.WriteLine("The element Monday contain in the SortedSet : " + sortedset.Contains("Monday"));
Console.WriteLine("The element Saturday contain in the SortedSet : " + sortedset.Contains("Saturday"));
Console.WriteLine("The element December contain in the SortedSet : " + sortedset.Contains("December"));
Console.WriteLine("The element 12 contain in the SortedSet : " + sortedset1.Contains(12));
Console.WriteLine("The element 20 contain in the SortedSet : " + sortedset1.Contains(20));
}
}
}
Output
![IMAGE6.jpg]()
Remove(): Removes a specified item from the SortedSet<T>. For example:
namespace SortedSet
{
class Program
{
static void Main(string[] args)
{
//create the SortedSet having string type of elements
SortedSet<string> sortedset = new SortedSet<string>();
//create the SortedSet having integer type of elements
SortedSet<int> sortedset1 = new SortedSet<int>();
//add the elements in the SortedSet having string type
sortedset.Add("Sunady");
sortedset.Add("Monday");
sortedset.Add("Tuesday");
sortedset.Add("Wednesday");
sortedset.Add("Thusday");
sortedset.Add("Friday");
sortedset.Add("Saturday");
//add the elements in the sortedSet having integer type
sortedset1.Add(1);
sortedset1.Add(40);
sortedset1.Add(25);
sortedset1.Add(10);
sortedset1.Add(20);
//display the elements of SortedList
Console.WriteLine("The elements in the SortedSet1:");
Console.WriteLine();
foreach (int i in sortedset1)
{
Console.WriteLine(i);
}
//display the elements of SortedList
Console.WriteLine();
Console.WriteLine("The elements in the SortedSet:");
Console.WriteLine();
foreach (string s in sortedset)
{
Console.WriteLine(s);
}
//remove the elements from string type sortedset
sortedset.Remove("Monday");
sortedset.Remove("Tuesday");
sortedset.Remove("Sunday");
sortedset.Remove("Saturday");
Console.WriteLine();
Console.WriteLine("After removal of the elements from the SortedSet is as:");
Console.WriteLine();
foreach (string s in sortedset)
{
Console.WriteLine(s);
}
//remove the elements from integer type sortedset
sortedset1.Remove(1);
sortedset1.Remove(20);
sortedset1.Remove(25);
Console.WriteLine();
Console.WriteLine("After removal of the elements from the SortedSet1 is as:");
Console.WriteLine();
foreach (int s in sortedset1)
{
Console.WriteLine(s);
}
}
}
}
Output
![IMAGE7.jpg]()
RemoveWhere(): Removes all elements that match the conditions defined by the specified predicate from a SortedSet<T>. For example:
namespace SortedSet
{
class Program
{
static void Main(string[] args)
{
//create the SortedSet having string type of elements
SortedSet<string> sortedset = new SortedSet<string>();
//add the elements in the SortedSet having string type
sortedset.Add("Sunady");
sortedset.Add("Monday");
sortedset.Add("Tuesday");
sortedset.Add("Wednesday");
sortedset.Add("Thusday");
sortedset.Add("Friday");
sortedset.Add("Saturday");
//display the elements of SortedList
Console.WriteLine("The elements in the SortedSet1:");
Console.WriteLine();
foreach (string i in sortedset)
{
Console.WriteLine(i);
}
//remove the elements using REMOVEWHERE
sortedset.RemoveWhere(Element => Element.StartsWith("T"));
sortedset.RemoveWhere(Element => Element.StartsWith("S"));
Console.WriteLine();
Console.WriteLine("After removal of the elements from the SortedSet is as:");
Console.WriteLine();
foreach (string s in sortedset)
{
Console.WriteLine(s);
}
}
}
}
Output
![IMAGE8.jpg]()
UnionWith(): The UnionWith instance method on the SortedSet type returns the union of two collections.Suppose the first set contains the elements "MCA","MBA","MTECH" and the second set contains the elements "BCA","BBA","BTECH". Then the UnionWith method adds all the elements into one collection. No duplicates will be found in the SortedSet. For example:
Syntax - First_set.UnionWith(Second_Set)
namespace SortedSet
{
class Program
{
static void Main(string[] args)
{
SortedSet<string> sortedset1 = new SortedSet<string>();
sortedset1.Add("MCA");
sortedset1.Add("MBA");
sortedset1.Add("MTECH");
SortedSet<string> sortedset2 = new SortedSet<string>();
sortedset2.Add("BCA");
sortedset2.Add("BBA");
sortedset2.Add("BTECH");
//APPLY UNIONWITH METHOD
sortedset1.UnionWith(sortedset2);
Console.WriteLine("After apply the unionwith operation the set is as:");
foreach (string str in sortedset1)
{
Console.WriteLine(str);
}
}
}
}
Output
![IMAGE9.jpg]()
SymmetricExceptWith(): The SymmetricExceptWith method returns all the elements in the two collections that are found in only one collection and not both collections. So if both collections contain the word "MCA", then the SymmetricExceptWith method will remove the word "MCA" from the SortedSet instance. For example:
namespace SortedSet
{
class Program
{
static void Main(string[] args)
{
//FIRST LIST
SortedSet<string> set = new SortedSet<string>();
set.Add("MCA");
set.Add("MBA");
set.Add("MTECH");
//SECOND LIST
SortedSet<string> list = new SortedSet<string>();
list.Add("MCA");
list.Add("MTECH");
// Determine symmetric set.
set.SymmetricExceptWith(list);
// Display elements.
foreach (string val in set)
{
Console.WriteLine(val);
}
}
}
}
Output
![IMAGE10.jpg]()
Summary
In this article I explained the concept of SortedSet<> and the various methods and properties of the SortedSet<> class.