{"id":140,"date":"2021-12-23T14:25:03","date_gmt":"2021-12-23T07:25:03","guid":{"rendered":"https:\/\/csharptutorial.net\/?page_id=140"},"modified":"2022-01-10T08:44:35","modified_gmt":"2022-01-10T01:44:35","slug":"csharp-char","status":"publish","type":"page","link":"https:\/\/www.csharptutorial.net\/csharp-tutorial\/csharp-char\/","title":{"rendered":"C# char"},"content":{"rendered":"\n

Summary<\/strong>: in this tutorial, you’ll learn about the C# char<\/code> type and how to use it to declare variables that hold a single character.<\/p>\n\n\n\n

Introduction to the C# char type<\/h2>\n\n\n\n

C# uses the char<\/code> keyword to represent the character type. A variable<\/a> of the char<\/code> type can hold a single character. The char<\/code> is an alias for the .NET System.Char<\/code> type.<\/p>\n\n\n\n

C# char literals<\/h3>\n\n\n\n

C# provides you with three ways to represent a character literal:<\/p>\n\n\n\n

  • A character literal.<\/li>
  • A Unicode escape sequence.<\/li>
  • A hexadecimal escape sequence.<\/li><\/ul>\n\n\n\n

    All three character literals are surrounded by single quotes. <\/p>\n\n\n\n

    For example, the following declares a variable that holds the character ‘a’:<\/p>\n\n\n

    char<\/span> key = 'a'<\/span>;<\/code><\/span>Code language:<\/span> C#<\/span> (<\/span>cs<\/span>)<\/span><\/small><\/pre>\n\n\n
    A Unicode escape sequence starts with \\u<\/code> and is followed by a four-symbol hexadecimal representation of the character code. For example:<\/p>\n\n\n
    char<\/span> c = '\\u002B'<\/span><\/code><\/span>Code language:<\/span> C#<\/span> (<\/span>cs<\/span>)<\/span><\/small><\/pre>\n\n\n
    A hexadecimal escape sequence starts with \\x<\/code> and the hexadecimal representation of the character code:<\/p>\n\n\n
    char<\/span> c = '\\x002C'<\/span><\/code><\/span>Code language:<\/span> C#<\/span> (<\/span>cs<\/span>)<\/span><\/small><\/pre>\n\n\n
    Operators<\/h3>\n\n\n\n
    The char<\/code> type support equality, comparison, increment, and decrement operators.<\/p>\n\n\n\n
    For example, the following compares two character variables and returns True<\/code> because they are the same character 'a'<\/code>: <\/p>\n\n\n
    char<\/span> c1 = 'a'<\/span>,\n     c2 = 'a'<\/span>;\n\nbool<\/span> result = c1 == c2;\n\nConsole.WriteLine(result);<\/code><\/span>Code language:<\/span> C#<\/span> (<\/span>cs<\/span>)<\/span><\/small><\/pre>\n\n\n
    Output:<\/p>\n\n\n
    True<\/code><\/span>Code language:<\/span> C#<\/span> (<\/span>cs<\/span>)<\/span><\/small><\/pre>\n\n\n
    If you assign the character 'b'<\/code> to the c2<\/code> variable, the result of the equality test will be false<\/code>:<\/p>\n\n\n
    char<\/span> c1 = 'a'<\/span>,\n     c2 = 'b'<\/span>;\n\nbool<\/span> result = c1 == c2;\n\nConsole.WriteLine(result);<\/code><\/span>Code language:<\/span> C#<\/span> (<\/span>cs<\/span>)<\/span><\/small><\/pre>\n\n\n
    Output:<\/p>\n\n\n
    False<\/code><\/span>Code language:<\/span> C#<\/span> (<\/span>cs<\/span>)<\/span><\/small><\/pre>\n\n\n
    Similar to the equality operator, you can use other comparison operators like <<\/code>, ><\/code>, <=<\/code>, and =><\/code> to compare two characters:<\/p>\n\n\n
    char<\/span> c1 = 'a'<\/span>,\n     c2 = 'b'<\/span>;\n\nbool<\/span> result = c1 < c2;\n\nConsole.WriteLine(result);<\/code><\/span>Code language:<\/span> C#<\/span> (<\/span>cs<\/span>)<\/span><\/small><\/pre>\n\n\n
    Output:<\/p>\n\n\n
    True<\/code><\/span>Code language:<\/span> C#<\/span> (<\/span>cs<\/span>)<\/span><\/small><\/pre>\n\n\n
    Summary<\/h2>\n\n\n\n
    • Use the char<\/code> keyword to represent the character type that holds a single character.<\/li><\/ul>\n
      \n\t
      \n\t\t
      Was this tutorial helpful ?<\/div>\n\t\t
      \n\t\t\t\n\t\t\t\t\n\t\t\t\t\t<\/path>\n\t\t\t\t<\/svg>\n\t\t\t\t Yes <\/span>\n\t\t\t<\/button>\n\n\t\t\t\n\t\t\t\t\n\t\t\t\t\t<\/path>\n\t\t\t\t<\/svg>\n\t\t\t\t No <\/span>\n\t\t\t<\/button>\n\t\t<\/div>\n\t<\/header>\n\n\t
      \n\t\t
      \n\t\t\t
      <\/div>\n\t\t\t\n\t\t\t