To check if two SortedSet objects are equal, the code is as follows −Example Live Demousing System; using System.Collections.Generic; public class Demo {    public static void Main(){       SortedSet set1 = new SortedSet();       set1.Add(100);       set1.Add(200);       set1.Add(300);       ... Read More

To check if Hashtable contains a specific key, the code is as follows −Exampleusing System; using System.Collections; public class Demo {    public static void Main()    public static void Main(){       Hashtable hash = new Hashtable();       hash.Add("One", "Katie");       hash.Add("Two", "John");   ... Read More

To check if Hashtable is read-only, the code is as follows −Example Live Demousing System; using System.Collections; public class Demo {    public static void Main(){       Hashtable hash = new Hashtable();       hash.Add("One", "Katie");       hash.Add("Two", "John");       hash.Add("Three", "Barry");     ... Read More

To check if the SortedSet contains a specific element, the code is as follows −Example Live Demousing System; using System.Collections.Generic; public class Demo {    public static void Main(){       SortedSet set1 = new SortedSet();       set1.Add("CD");       set1.Add("CD");       set1.Add("CD");     ... Read More

To check if a Stack has elements, use the C# Contains() method. Following is the code −Example Live Demousing System; using System.Collections.Generic; public class Demo {    public static void Main(){       Stack stack = new Stack();       stack.Push(100);       stack.Push(150);       stack.Push(175); ... Read More

To check if a SortedSet object is a proper superset of the specified collection, the code is as follows −Example Live Demousing System; using System.Collections.Generic; public class Demo {    public static void Main(){       SortedSet set1 = new SortedSet();       set1.Add(10);       set1.Add(20); ... Read More

To check if a SortedSet object is a proper subset of the specified collection, the code is as follows −Example Live Demousing System; using System.Collections.Generic; public class Demo {    public static void Main(){       SortedSet set1 = new SortedSet();       set1.Add(20);       set1.Add(40);   ... Read More

To check if the Hashtable contains a specific value, the code is as follows −Example Live Demousing System; using System.Collections; public class Demo {    public static void Main(){       Hashtable hash = new Hashtable();       hash.Add("1", "A");       hash.Add("2", "B");       hash.Add("3", ... Read More

To check if Hashtable has a fixed size, the code is as follows −Example Live Demousing System; using System.Collections; public class Demo {    public static void Main(){       Hashtable hash = new Hashtable(10);       hash.Add("1", "A");       hash.Add("2", "B");       hash.Add("3", "C"); ... Read More

To check if an element is in the Queue, the code is as follows −Example Live Demousing System; using System.Collections.Generic; public class Demo {    public static void Main(){       Queue queue = new Queue();       queue.Enqueue("Electronics");       queue.Enqueue("Accessories");       queue.Enqueue("Toys");     ... Read More