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

The Array.BinarySearch() method in C# is used to searches a range of elements in a one-dimensional sorted array for a value, using the IComparable interface implemented by each element of the array and by the specified value.Note − It searches in a sorted array.SyntaxThe syntax is as follows −public static int BinarySearch (Array arr, int index, int len, object val);Above, the parameters arr is the 1-D array to search, index is the beginning index of the range to search, len is the length of the search. The val parameter is the object to search for.ExampleLet us now see an example ... 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