Programming Articles - Page 2342 of 3363

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

The Math.Log() method in C# is used to return the logarithm of a specified number.Syntaxpublic static double Log(double num) public static double Log(double num, double base)Above, num is the specified number whose logarithm is to be calculated. Here, the base is the base of the logarithm.Let us now see an example to implement the Math.Log() method −Exampleusing System; public class Demo {    public static void Main(){       double val1 = 2.15;       double val2 = -2.15;       Console.WriteLine(Math.Log(val1));       Console.WriteLine(Math.Log(val2));    } }OutputThis will produce the following output −0.765467842139571 NaNExampleLet us ... Read More

The Math.IEEERemainder() method in C# is used to return the remainder resulting from the division of a specified number by another specified number.Syntaxpublic static double IEEERemainder (double dividend, double divisor);Let us now see an example to implement Math.IEEERemainder() method −Exampleusing System; public class Demo {    public static void Main(){       double val1 = 90;       double val2 = 7;       // IEEE Remainder       var rem = Math.IEEERemainder(val1, val2);       Console.WriteLine(rem);    } }OutputThis will produce the following output −-1Let us see another example to implement Math.IEEERemainder() method −Exampleusing ... Read More

The Type.GetDefaultMembers() method in C# is used to search for the members defined for the current Type whose DefaultMemberAttribute is set.Syntaxpublic virtual System.Reflection.MemberInfo[] GetDefaultMembers ();Let us now see an example to implement the Type.GetDefaultMembers() method −Exampleusing System; using System.Reflection; [DefaultMemberAttribute("subject")] public class Demo {    public static void Main(){       Type t = typeof(Demo);       MemberInfo[] member = t.GetDefaultMembers();       if (member.Length != 0){          for (int i = 0; i < member.Length; i++)          Console.WriteLine("{0}", member[i]);       }       else {     ... Read More

The Type.GetArrayRank() method in C# gets the number of dimensions in an array.Syntaxpublic virtual int GetArrayRank ();Let us now see an example to implement the Type.GetArrayRank() method −Exampleusing System; public class Demo {    public static void Main(string[] args) {       Type type = typeof(int[, , ]);       int arrRank = type.GetArrayRank();       Console.WriteLine("Array Rank = {0}", arrRank);    } }OutputThis will produce the following output −Array Rank = 3Let us now see another example to implement the Type.GetArrayRank() method −Exampleusing System; public class Demo {    public static void Main(string[] args) {   ... Read More

The Type.Equals() method in C# determines if the underlying system type of the current Type is the same as the underlying system type of the specified Object or Type.Syntaxpublic virtual bool Equals (Type o); public override bool Equals (object o);Above, the parameters are the object whose underlying system type is to be compared with the underlying system type of the current Type.Let us now see an example to implement the Type.Equals() method −using System; public class Demo {    public static void Main(string[] args) {       Type val1 = typeof(System.UInt16);       Type val2 = typeof(System.Int32);   ... Read More