The Math.Truncate() method in C# is used to compute an integral part of a number, which is Double or Decimal.Syntaxpublic static decimal Truncate(decimal val1) public static double Truncate(double val2)Above, there are two syntaxes. The value val1 is the decimal number to truncate, whereas val2 is the double number to truncate.ExampleLet us now see an example to implement Math.Truncate() method −using System; public class Demo {    public static void Main(){       Decimal val1 = 25.46467m;       Decimal val2 = 45.9989m;       Decimal val3 = 678.325m;       Console.WriteLine(Math.Truncate(val1));       Console.WriteLine(Math.Truncate(val2));   ... Read More

The Math.Tanh() method in C# is used to return the hyperbolic tangent of the specified angle.Syntaxpublic static double Tanh (double val);Above, Val is the angle.ExampleLet us now see an example to implement Math.Tanh() method −using System; public class Demo {    public static void Main(){       double val1 = 30.0;       double val2 = (60 * (Math.PI)) / 180;       Console.WriteLine(Math.Tanh(val1));       Console.WriteLine(Math.Tanh(val2));    } }OutputThis will produce the following output −1 0.780714435359268ExampleLet us see another example to implement Math.Tanh() method −using System; public class Demo {    public static void Main(){ ... Read More

The CharEnumerator.Reset() method in C# initializes the index to a position logically before the first character of the enumerated string.Syntaxpublic void Reset ();ExampleLet us now see an example to implement the CharEnumerator.Reset() method −using System; public class Demo {    public static void Main(){       string strNum = "This is it!";       CharEnumerator ch = strNum.GetEnumerator();       Console.WriteLine("HashCode = "+ch.GetHashCode());       Console.WriteLine("Get the Type = "+ch.GetType());       while (ch.MoveNext())          Console.Write(ch.Current + " ");       ch.Reset();       Console.WriteLine();       while (ch.MoveNext()) ... Read More

The CharEnumerator.MoveNext() method in C# is used to increments the internal index of the current CharEnumerator object to the next character of the enumerated string.Syntaxpublic bool MoveNext ();Let us now see an example to implement the CharEnumerator.MoveNext() method −Exampleusing System; public class Demo {    public static void Main(){       string strNum = "john";       CharEnumerator ch = strNum.GetEnumerator();       Console.WriteLine("HashCode = "+ch.GetHashCode());       Console.WriteLine("Get the Type = "+ch.GetType());       while (ch.MoveNext())          Console.Write(ch.Current + " ");       // disposed       ch.Dispose();   ... Read More

The CharEnumerator.GetType() method in C# is used to get the type of the current instance.Syntaxpublic Type GetType();Let us now see an example to implement the CharEnumerator.GetType() method −Exampleusing System; public class Demo {    public static void Main(){       string strNum = "john";       CharEnumerator ch = strNum.GetEnumerator();       Console.WriteLine("HashCode = "+ch.GetHashCode());       Console.WriteLine("Get the Type = "+ch.GetType());       while (ch.MoveNext())          Console.Write(ch.Current + " ");       // disposed       ch.Dispose();       // this will show an error since we disposed ... Read More

The CharEnumerator.GetHashCode() method in C# returns a hash code for the current object.Syntaxpublic virtual int GetHashCode ();Let us now see an example to implement the CharEnumerator.GetHashCode() method −Exampleusing System; public class Demo {    public static void Main(){       string strNum = "john";       CharEnumerator ch = strNum.GetEnumerator();       Console.WriteLine("HashCode = "+ch.GetHashCode());       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 −HashCode = 30571253 j o h n

The Dictionary. Count property in C# gets the number of key/value pairs in the Dictionary.syntaxpublic int Count { get; }Let us now see an example to implement the Dictionary. Count property −Exampleusing System; using System.Collections.Generic; public class Demo {    public static void Main(){       Dictionary dict =       new Dictionary();       dict.Add("One", "Chris");       dict.Add("Two", "Steve");       dict.Add("Three", "Messi");       dict.Add("Four", "Ryan");       dict.Add("Five", "Nathan");       Console.WriteLine("Count of elements = "+dict.Count);       Console.WriteLine("Key/value pairs...");       foreach(KeyValuePair res in dict){ ... Read More

The Char.TryParse() method in C# is used to convert the value of the specified string to its equivalent Unicode character.Syntaxpublic static bool TryParse (string str, out char res);Let us now see an example to implement the Char.TryParse () method −Exampleusing System; public class Demo {    public static void Main(){       bool res;       Char ch;       res = Char.TryParse("10", out ch);       Console.WriteLine(res);       Console.WriteLine(ch.ToString());    } }OutputThis will produce the following output −FalseLet us now see another example −Exampleusing System; public class Demo {    public static void ... Read More

The Char.ToUpperInvariant() method in C# is used to convert the value of a Unicode character to its uppercase equivalent using the casing rules of the invariant culture.Syntaxpublic static char ToUpperInvariant (char ch);Above, the parameter ch is the Unicode character to convert.Let us now see an example to implement the Char.ToUpperInvariant() method −Exampleusing System; public class Demo {    public static void Main(){       char ch = 'q';       char res = Char.ToUpperInvariant(ch);       Console.WriteLine("Value = "+ch);       Console.WriteLine("Uppercase Equivalent = "+res);    } }OutputThis will produce the following output −Value = q ... Read More

The Math.Log10() method in C# is returned to the base 10 logarithms of a specified number.Syntaxpublic static double Log10 (double val);Here, Val is the number whose logarithm we want.The Log10() method returns −Val parameterReturnsPositiveThe base 10 log of d; that is, log 10d.ZeroNegativeInfinityNegativeNaNEqual to NaNNaNEqual to PositiveInfinityPositiveInfinityLet us now see an example to implement Math.Log10() method −Exampleusing System; public class Demo {    public static void Main(){       double val1 = Double.PositiveInfinity; ;       double val2 = Double.NegativeInfinity;       Console.WriteLine(Math.Log10(val1));       Console.WriteLine(Math.Log10(val2));    } }OutputThis will produce the following output −∞ NaNLet ... Read More