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Found 2628 Articles for Csharp
335 Views
To find the intersection of two HashSets, 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("AB"); set1.Add("CD"); set1.Add("EF"); set1.Add("AB"); set1.Add("IJ"); set1.Add("KL"); 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("EF"); ... Read More
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To get the intersection of SortedSet with a Collection, the code is as follow −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); SortedSet set2 = new SortedSet(); set2.Add(450); set2.Add(200); set2.Add(650); set2.Add(300); set2.Add(800); Console.WriteLine("Does it contain the same elements? = "+set1.SetEquals(set2)); set1.IntersectWith(set2); Console.WriteLine("Resultant SortedSet..."); foreach(int ... Read More
204 Views
To insert into OrderedDictionary with key and value at specified index, 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("A", "Books"); dict.Add("B", "Electronics"); dict.Add("C", "Smart Wearables"); dict.Add("D", "Pet Supplies"); Console.WriteLine("OrderedDictionary elements..."); foreach(DictionaryEntry d in dict){ Console.WriteLine(d.Key + " " + d.Value); } Console.WriteLine("Count of elements in OrderedDictionary = " + dict.Count); ... Read More
101 Views
To insert at the specified index in StringCollection, the code is as follows −Example Live Demousing System; using System.Collections.Specialized; public class Demo { public static void Main(){ StringCollection strCol = new StringCollection(); strCol.Add("Accessories"); strCol.Add("Books"); strCol.Add("Electronics"); Console.WriteLine("StringCollection elements..."); foreach (string res in strCol){ Console.WriteLine(res); } strCol.Insert(2, "Headphone"); Console.WriteLine("StringCollection elements...UPDATED"); foreach (string res in strCol){ Console.WriteLine(res); } } }OutputThis will ... Read More
272 Views
To insert an element into Collection at the specified index, the code is as follows −Example Live Demousing System; using System.Collections.ObjectModel; public class Demo { public static void Main(){ Collection col = new Collection(); col.Add("Laptop"); col.Add("Desktop"); col.Add("Notebook"); col.Add("Ultrabook"); col.Add("Tablet"); col.Add("Headphone"); col.Add("Speaker"); Console.WriteLine("Elements in Collection..."); foreach(string str in col){ Console.WriteLine(str); } Console.WriteLine("Element at index 3 = " + col[3]); ... Read More
59 Views
To insert a new entry in OrderedDictionary with specified key and value, 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"); Console.WriteLine("Elements..."); IDictionaryEnumerator demoEnum = dict.GetEnumerator(); while (demoEnum.MoveNext()) { ... Read More
125 Views
To check whether an element is contained in the ArrayList, the code is as follows −Example Live Demousing System; using System.Collections; public class Demo { public static void Main(){ ArrayList list = new ArrayList(); list.Add("One"); list.Add("Two"); list.Add("Three"); list.Add("Four"); list.Add("Five"); list.Add("Six"); list.Add("Seven"); list.Add("Eight"); Console.WriteLine("ArrayList elements..."); foreach(string str in list){ Console.WriteLine(str); } Console.WriteLine("ArrayList is read-only? = "+list.IsReadOnly); ... Read More
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To check whether a Hashtable contains a specific key or not, 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"); hash.Add("Four", ""); hash.Add("Five", "Harry"); hash.Add("Six", "F"); hash.Add("Seven", "Tom"); hash.Add("Eight", "Andy"); hash.Add("Nine", "I"); hash.Add("Ten", "Tim"); Console.WriteLine("Hashtable Key and Value pairs..."); foreach(DictionaryEntry ... Read More
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To check the HybridDictionary for a specified key, the code is as follows −Example Live Demousing System; using System.Collections; using System.Collections.Specialized; public class Demo { public static void Main(){ HybridDictionary dict = new HybridDictionary(5); dict.Add("A", "AB"); dict.Add("B", "BC"); dict.Add("C", "DE"); dict.Add("D", "FG"); dict.Add("E", "HI"); Console.WriteLine("Key/Value pairs..."); foreach(DictionaryEntry d in dict) Console.WriteLine("Key = "+d.Key + ", Value = " + d.Value); Console.WriteLine("Does HybridDictionary contains the key C? = "+dict.Contains("C")); } ... Read More
518 Views
The Convert Class has methods to convert a base data type to another base data type. Let us see some examples −The Convert.ToBoolean() method in C# is used to convert a specified value to an equivalent Boolean value.SyntaxFollowing is the syntax −public static bool ToBoolean (string val, IFormatProvider provider);Above, Val is a string that contains the value of either TrueString or FalseString, whereas the provider is an object that supplies culture-specific formatting information.ExampleLet us now see an example to implement the Convert.ToBoolean() method − Live Demousing System; using System.Globalization; public class Demo { public static void Main(){ ... Read More