The Math.DivRem() method in C# is used to divide and calculate the quotient of two numbers and also returns the remainder in an output parameter.Syntaxpublic static int DivRem (int dividend, int divisor, out int remainder); public static long DivRem (long dividend, long divisor, long remainder);Let us now see an example to implement Math.DivRem() method −Exampleusing System; public class Demo {    public static void Main(){       int dividend = 30;       int divisor = 7;       int remainder;       int quotient = Math.DivRem(dividend, divisor, out remainder);       Console.WriteLine("Quotient = "+quotient); ... Read More

The Char.IsWhiteSpace() method in C# is used to indicate whether the specified Unicode character is white space.Syntaxpublic static bool IsWhiteSpace (char ch);Above, the parameter ch is the Unicode character to evaluate.Let us now see an example to implement the Char.IsWhiteSpace() method −Exampleusing System; public class Demo {    public static void Main(){       bool res;       char val = ' ';       Console.WriteLine("Value = "+val);       res = Char.IsWhiteSpace(val);       Console.WriteLine("Is the value whitespace? = "+res);    } }OutputThis will produce the following output −Value = Is the value whitespace? ... Read More

The Dictionary.Clear() method in C# removes all key/value pairs from the Dictionary.Syntaxpublic void Clear();Let us now see an example to implement the Dictionary.Clear() method −Exampleusing System; using System.Collections.Generic; public class Demo {    public static void Main(){       Dictionary dict =       new Dictionary();       dict.Add("One", "John");       dict.Add("Two", "Tom");       dict.Add("Three", "Jacob");       dict.Add("Four", "Kevin");       dict.Add("Five", "Nathan");       Console.WriteLine("Count of elements = "+dict.Count);       Console.WriteLine("Key/value pairs...");       foreach(KeyValuePair res in dict){          Console.WriteLine("Key = {0}, ... Read More

The CharEnumerator.Dispose() method in C# is used to release all resources used by the current instance of the CharEnumerator class.Syntaxpublic void Dispose ();Let us now see an example to implement the CharEnumerator.Dispose() method −Exampleusing System; public class Demo {    public static void Main(){       string strNum = "356";       CharEnumerator ch = strNum.GetEnumerator();       while (ch.MoveNext())          Console.Write(ch.Current + " ");       // disposed       ch.Dispose();       // this will show an error since we disposed the object above       // Console.WriteLine(ch.Current);    } }OutputThis will produce the following output −3 5 6

The CharEnumerator.Clone() method in C# is used to create a copy of the current CharEnumerator object.Syntaxpublic object Clone();Let us now see an example to implement the CharEnumerator.Clone() method −Exampleusing System; public class Demo {    public static void Main(){       string strNum = "356";       CharEnumerator ch = strNum.GetEnumerator();       while (ch.MoveNext()){          Console.Write(ch.Current + " ");          CharEnumerator enumClone = (CharEnumerator)ch.Clone();          while (enumClone.MoveNext())             Console.Write(enumClone.Current + " ");          Console.WriteLine();       }    } }OutputThis will produce the following output −3 5 6 5 6 6

The Char.IsUpper() method in C# indicates whether the specified Unicode character is categorized as an uppercase letter.Syntaxpublic static bool IsUpper (char ch);Above, the parameter ch is the Unicode character to evaluate.Let us now see an example to implement the Char.IsUpper() method −Exampleusing System; public class Demo {    public static void Main(){       bool res;       char val = 'H';       Console.WriteLine("Value = "+val);       res = Char.IsUpper(val);       Console.WriteLine("Is the value an uppercae letter? = "+res);    } }OutputThis will produce the following output −Value = H Is the ... Read More

The Char.IsSymbol() method in C# is indicating whether the character at the specified position in a specified string is categorized as a symbol character.Syntaxpublic static bool IsSymbol (string str, int index);Above, str is a string, whereas the position of the character to evaluate in str.Let us now see an example to implement the Char.IsSymbol() method −Exampleusing System; public class Demo {    public static void Main(){       bool res;       char val = 'P';       Console.WriteLine("Value = "+val);       res = Char.IsSymbol(val);       Console.WriteLine("Is the value a symbol? = "+res); ... Read More

The Char.IsControl(String, Int32) method in C# is used to indicate whether the character at the specified position in a specified string is categorized as a control character.Syntaxpublic static bool IsControl (string str, int index);Above, str is a string. The index parameter is the position of the character to evaluate in str.Let us now see an example to implement the Char.IsControl(String, Int32) method −Exampleusing System; using System.Globalization; public class Demo {    public static void Main(){       string val = "hjk9878hj";       Console.WriteLine("String = "+val);       UnicodeCategory unicode = Char.GetUnicodeCategory(val, 4);       Console.WriteLine("The ... Read More

The Dictionary.ContainsValue() method in C# is used to check whether the Dictionary contains a specific value or not.Syntaxpublic bool ContainsValue (TValue val);Above, Val is the value to be searched.Let us now see an example to implement the Dictionary.ContainsValue() method −Exampleusing System; using System.Collections.Generic; public class Demo {    public static void Main(){       Dictionary dict =       new Dictionary();       dict.Add("One", "John");       dict.Add("Two", "Tom");       dict.Add("Three", "Jacob");       dict.Add("Four", "Kevin");       dict.Add("Five", "Nathan");       Console.WriteLine("Count of elements = "+dict.Count);       Console.WriteLine("Key/value ... Read More

The Dictionary.ContainsKey() method in C# checks whether the Dictionary