Static Methods for Characters in C#
There are several pre-defined methods available in C# to apply on characters. In this article, we discuss each method.
IsLetter(): This method used to check whether a specific character is a letter or not. It returns true for upper case & lower case letters and false for all others.
if (Char.IsLetter('F') == true)
{
}
IsUpper(): It returns true for upper case letters and false for lower case letters.
IsLower(): It returns true for lower case and false for upper case letters.
IsDigit(): It returns true for digits 0 to 9 and false for all other characters.
IsLetterOrDigit(): It returns true for letters and digits, false for all other characters.
IsNumber(): It returns true if given a character is a number and false for all others.
IsSeparator(): It returns true for space & all Unicode separator characters and false for all other characters.
IsWhiteSpace(): It returns true for all separators plus \n, \r, \t, \f, and \v & false for all others.
IsPunctuation(): It returns true for symbols used for punctuation in Western and other alphabets.
IsSymbol(): It returns true for MathSymbol, ModifierSymbol, OtherSymbol.
IsControl(): It returns true for Nonprintable “control” characters below 0x20, such as \r, \n, \t, \0, and characters between 0x7F and 0x9A.
