The Queue.CopyTo() method in C# is used to copy the Queue elements to an existing one-dimensional Array, starting at the specified array index.SyntaxThe syntax is as follows −public virtual void CopyTo (Array arr, int index);Above, the parameter arr is the one-dimensional Array that is the destination of the elements copied from Queue. The index parameter is the zero-based index in array at which copying begins.ExampleLet us now see an example − Live Demousing System; using System.Collections.Generic; public class Demo {    public static void Main() {       Queue queue = new Queue();       queue.Enqueue(100);       ... Read More

To check if a SortedList object contains a specific value, the code is as follows −Example Live Demousing System; using System.Collections; public class Demo {    public static void Main(){       SortedList list = new SortedList();       list.Add("1", "One");       list.Add("2", "Two");       list.Add("3", "Three");       list.Add("4", "Four");       list.Add("5", "Five");       list.Add("6", "Six");       list.Add("7", "Seven");       list.Add("8", "Eight");       Console.WriteLine("Key and Value of SortedList....");       foreach(DictionaryEntry k in list )       Console.WriteLine("Key: {0}, Value: {1}", ... Read More

To get an enumerator that iterates through the List, the code is as follows −Example Live Demousing System; using System.Collections.Generic; public class Demo {    public static void Main(String[] args){       List list1 = new List();       list1.Add("One");       list1.Add("Two");       list1.Add("Three");       list1.Add("Four");       list1.Add("Five");       Console.WriteLine("Elements in List1...");       foreach (string res in list1){          Console.WriteLine(res);       }       List list2 = new List();       list2.Add("India");       list2.Add("US");       list2.Add("UK"); ... Read More

To get the first node of the LinkedList, the code is as follows −Example Live Demousing System; using System.Collections.Generic; public class Demo {    public static void Main(){       LinkedList list = new LinkedList();       list.AddLast("A");       list.AddLast("B");       list.AddLast("C");       list.AddLast("D");       list.AddLast("E");       list.AddLast("F");       list.AddLast("G");       list.AddLast("H");       list.AddLast("I");       list.AddLast("J");       Console.WriteLine("Count of nodes = " + list.Count);       Console.WriteLine("First Node = "+list.First.Value);       list.Clear();       Console.WriteLine("Count ... Read More

To get an ICollection containing the values in OrderedDictionary, the code is as follows −Example Live Demousing System; using System.Collections; using System.Collections.Specialized; public class Demo {    public static void Main(){       OrderedDictionary dict = new OrderedDictionary();       dict.Add("1", "One");       dict.Add("2", "Two");       dict.Add("3", "Three");       dict.Add("4", "Four");       dict.Add("5", "Five");       dict.Add("6", "Six");       dict.Add("7", "Seven");       dict.Add("8", "Eight");       ICollection col = dict.Values;       String[] strVal = new String[dict.Count];       col.CopyTo(strVal, 0);     ... Read More

To check if a Hashtable is equal to another Hashtable, the code is as follows −Example Live Demousing System; using System.Collections; public class Demo {    public static void Main(){       Hashtable hash1 = new Hashtable();       hash1.Add("1", "Kevin");       hash1.Add("2", "Steve");       hash1.Add("3", "Tim");       hash1.Add("4", "Gary");       hash1.Add("5", "Kevin");       hash1.Add("6", "Steve");       hash1.Add("7", "Tom");       hash1.Add("8", "Stephen");       Console.WriteLine("HashSet1...");       ICollection key = hash1.Keys;       foreach (string k in key) {       ... Read More

To check if a HashSet is a 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(){       HashSet set1 = new HashSet();       set1.Add("EF");       set1.Add("OP");       Console.WriteLine("Elements in HashSet1");       foreach(string val in set1){          Console.WriteLine(val);       }       HashSet set2 = new HashSet();       set2.Add("KL");       set2.Add("MN");       set2.Add("OP");       set2.Add("QR");       Console.WriteLine("Elements in HashSet2");   ... Read More

To check if two BitArray objects are equal, the code is as follows −Example Live Demousing System; using System.Collections; public class Demo {    public static void Main(){       BitArray arr1 = new BitArray(2);       BitArray arr2 = new BitArray(2);       arr1[0] = false;       arr1[1] = true;       Console.WriteLine("Elements in BitArray1...");       foreach (bool res in arr1){          Console.WriteLine(res);       }       arr2[0] = false;       arr2[1] = true;       Console.WriteLine("Elements in BitArray2...");       foreach ... Read More

To get a collection of keys in the StringDictionary, the code is as follows −Example Live Demousing System; using System.Collections; using System.Collections.Specialized; public class Demo {    public static void Main(){       StringDictionary strDict1 = new StringDictionary();       strDict1.Add("U", "Electronics");       strDict1.Add("V", "Toys");       strDict1.Add("W", "Books");       strDict1.Add("X", "Accessories");       Console.WriteLine("StringDictionary1 elements...");       foreach(DictionaryEntry d in strDict1){          Console.WriteLine(d.Key + " " + d.Value);       }       Console.WriteLine("Does StringDictionary1 has key G? "+strDict1.ContainsKey("G"));       StringDictionary strDict2 = new ... Read More

To check if the StringDictionary contains a specific value, the code is as follows −Example Live Demousing System; using System.Collections; using System.Collections.Specialized; public class Demo {    public static void Main(){       StringDictionary strDict1 = new StringDictionary();       strDict1.Add("A", "John");       strDict1.Add("B", "Andy");       strDict1.Add("C", "Tim");       strDict1.Add("D", "Ryan");       strDict1.Add("E", "Kevin");       strDict1.Add("F", "Katie");       strDict1.Add("G", "Brad");       Console.WriteLine("StringDictionary1 elements...");       foreach(DictionaryEntry d in strDict1){          Console.WriteLine(d.Key + " " + d.Value);       }   ... Read More