Generating an array of letters in the alphabet

Question

Is there an easy way to generate an array containing the letters of the alphabet in C   It s not too hard to do it by hand  but I was wondering if there was a built in way to do this

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You could do something like this  based on the ascii values of the characters   char 26  alphabet   for int i   0  i  lt 26  i           alphabet i     char  i 65     65 is the offset for capital A in the ascaii table      See the table here   You are just casting from the int value of the character to the character value - but  that only works for ascii characters not different languages etc   EDIT  As suggested by Mehrdad in the comment to a similar solution  it s better to do this   alphabet i     char  i  int   A       This casts the A character to it s int value and then increments based on this  so it s not hardcoded

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Note also  the string has a operator   which returns a Char  and is an IEnumerable lt char gt   so for most purposes  you can use a string as a char     Hence   string alpha    ABCDEFGHIJKLMNOPQRSTUVQXYZ   for  int i  0  i  lt  26    i           Console WriteLine alpha i       foreach char c in alpha           Console WriteLine c

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char   alphabet   Enumerable Range  A   26  Select x   gt   char x  ToArray

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generate a list of alphabet using csharp   this recurcive function will return you   a string with position of passed int   say if pass 0 will return A  1-B 2-C       26-AA 27-AB      701-ZZ 702-AAA 703-AAB      static string CharacterIncrement int colCount        int TempCount   0      string returnCharCount   string Empty       if  colCount  lt   25                TempCount   colCount          char CharCount   Convert ToChar  Convert ToInt32  A     TempCount            returnCharCount    CharCount          return returnCharCount            else               var rev   0           while  colCount  gt   26                        colCount   colCount - 26              rev                       returnCharCount    CharacterIncrement rev-1           returnCharCount    CharacterIncrement colCount           return returnCharCount             --------this loop call this function---------   int i   0  while  i  lt  gt                string CharCount   string Empty          CharCount   CharacterIncrement i            i

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var alphabets   Enumerable Range  A   26  Select  num    gt    char num  ToString    ToList

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I don t think there is a built in way  but I think the easiest would be     char   alpha    ABCDEFGHIJKLMNOPQRSTUVWXYZ  ToCharArray

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Assuming you mean the letters of the English alphabet         for   int i   0  i  lt  26  i                   Console WriteLine  Convert ToChar  i   65                Console WriteLine   Press any key to continue          Console ReadKey

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4 ways get English alphabet in Console   public void ShowEnglishAlphabet         var firstLetter    a       var endLetter    z       for  var letter   firstLetter  letter  lt   endLetter  letter                  Console WriteLine    letter - letter ToString   ToUpper                public void ShowEnglishAlphabetFromUnicodeTableDecNumber         var firstLetter   97      var endLetter   122      for  var letterNumberUnicodeTable   firstLetter       letterNumberUnicodeTable  lt   endLetter  letterNumberUnicodeTable                  Console WriteLine     char letterNumberUnicodeTable -             char letterNumberUnicodeTable  ToString   ToUpper                public void ShowEnglishAlphabetUnicodeTableEscapeSequence         var firstLetter     u0061       var endLetter     u007A       for  var letterNumberUnicodeTable   firstLetter       letterNumberUnicodeTable  lt   endLetter  letterNumberUnicodeTable                  Console WriteLine    letterNumberUnicodeTable -           letterNumberUnicodeTable ToString   ToUpper                   public void ShowEnglishAlphabetUnicodeTableLinq         var alphabets   Enumerable Range  a   26  Select letter   gt         char letter  ToString    ToList        foreach  var letter in alphabets                Console WriteLine    letter - letter ToUpper

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char   alphabet   Enumerable Range  A   26  Select x   gt   char x  ToArray

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C  3 0    char   az   Enumerable Range  a    z  -  a    1  Select i   gt   Char i  ToArray    foreach  var c in az        Console WriteLine c       yes it does work even if the only overload of Enumerable Range accepts int parameters  -

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I don t think there is a built in way  but I think the easiest would be     char   alpha    ABCDEFGHIJKLMNOPQRSTUVWXYZ  ToCharArray

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4 ways get English alphabet in Console   public void ShowEnglishAlphabet         var firstLetter    a       var endLetter    z       for  var letter   firstLetter  letter  lt   endLetter  letter                  Console WriteLine    letter - letter ToString   ToUpper                public void ShowEnglishAlphabetFromUnicodeTableDecNumber         var firstLetter   97      var endLetter   122      for  var letterNumberUnicodeTable   firstLetter       letterNumberUnicodeTable  lt   endLetter  letterNumberUnicodeTable                  Console WriteLine     char letterNumberUnicodeTable -             char letterNumberUnicodeTable  ToString   ToUpper                public void ShowEnglishAlphabetUnicodeTableEscapeSequence         var firstLetter     u0061       var endLetter     u007A       for  var letterNumberUnicodeTable   firstLetter       letterNumberUnicodeTable  lt   endLetter  letterNumberUnicodeTable                  Console WriteLine    letterNumberUnicodeTable -           letterNumberUnicodeTable ToString   ToUpper                   public void ShowEnglishAlphabetUnicodeTableLinq         var alphabets   Enumerable Range  a   26  Select letter   gt         char letter  ToString    ToList        foreach  var letter in alphabets                Console WriteLine    letter - letter ToUpper

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I wrote this to get the MS excel column code  A B C       Z  AA  AB       ZZ  AAA  AAB       based on a 1-based index   Of course  switching to zero-based is simply leaving off the column--  at the start    public static String getColumnNameFromIndex int column        column--      String col   Convert ToString  char   A     column   26         while  column  gt   26                column    column   26  -1          col   Convert ToString  char   A     column   26      col            return col

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Note also  the string has a operator   which returns a Char  and is an IEnumerable lt char gt   so for most purposes  you can use a string as a char     Hence   string alpha    ABCDEFGHIJKLMNOPQRSTUVQXYZ   for  int i  0  i  lt  26    i           Console WriteLine alpha i       foreach char c in alpha           Console WriteLine c

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for  char letter    A   letter  lt    Z   letter           Debug WriteLine letter

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I wrote this to get the MS excel column code  A B C       Z  AA  AB       ZZ  AAA  AAB       based on a 1-based index   Of course  switching to zero-based is simply leaving off the column--  at the start    public static String getColumnNameFromIndex int column        column--      String col   Convert ToString  char   A     column   26         while  column  gt   26                column    column   26  -1          col   Convert ToString  char   A     column   26      col            return col

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C  3 0    char   az   Enumerable Range  a    z  -  a    1  Select i   gt   Char i  ToArray    foreach  var c in az        Console WriteLine c       yes it does work even if the only overload of Enumerable Range accepts int parameters  -

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generate a list of alphabet using csharp   this recurcive function will return you   a string with position of passed int   say if pass 0 will return A  1-B 2-C       26-AA 27-AB      701-ZZ 702-AAA 703-AAB      static string CharacterIncrement int colCount        int TempCount   0      string returnCharCount   string Empty       if  colCount  lt   25                TempCount   colCount          char CharCount   Convert ToChar  Convert ToInt32  A     TempCount            returnCharCount    CharCount          return returnCharCount            else               var rev   0           while  colCount  gt   26                        colCount   colCount - 26              rev                       returnCharCount    CharacterIncrement rev-1           returnCharCount    CharacterIncrement colCount           return returnCharCount             --------this loop call this function---------   int i   0  while  i  lt  gt                string CharCount   string Empty          CharCount   CharacterIncrement i            i

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Surprised no one has suggested a yield solution   public static IEnumerable lt char gt  Alphabet         for  char letter    A   letter  lt    Z   letter                  yield return letter            Example   foreach  var c in Alphabet          Console Write c

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I don t think there is a built in way  but I think the easiest would be     char   alpha    ABCDEFGHIJKLMNOPQRSTUVWXYZ  ToCharArray

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char alphaStart   Char Parse  A    char alphaEnd   Char Parse  Z    for char i   alphaStart  i  lt   alphaEnd  i          string anchorLetter   i ToString

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Assuming you mean the letters of the English alphabet         for   int i   0  i  lt  26  i                   Console WriteLine  Convert ToChar  i   65                Console WriteLine   Press any key to continue          Console ReadKey

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C  3 0    char   az   Enumerable Range  a    z  -  a    1  Select i   gt   Char i  ToArray    foreach  var c in az        Console WriteLine c       yes it does work even if the only overload of Enumerable Range accepts int parameters  -

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Assuming you mean the letters of the English alphabet         for   int i   0  i  lt  26  i                   Console WriteLine  Convert ToChar  i   65                Console WriteLine   Press any key to continue          Console ReadKey

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Surprised no one has suggested a yield solution   public static IEnumerable lt char gt  Alphabet         for  char letter    A   letter  lt    Z   letter                  yield return letter            Example   foreach  var c in Alphabet          Console Write c

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You could do something like this  based on the ascii values of the characters   char 26  alphabet   for int i   0  i  lt 26  i           alphabet i     char  i 65     65 is the offset for capital A in the ascaii table      See the table here   You are just casting from the int value of the character to the character value - but  that only works for ascii characters not different languages etc   EDIT  As suggested by Mehrdad in the comment to a similar solution  it s better to do this   alphabet i     char  i  int   A       This casts the A character to it s int value and then increments based on this  so it s not hardcoded

User · Answer

Note also  the string has a operator   which returns a Char  and is an IEnumerable lt char gt   so for most purposes  you can use a string as a char     Hence   string alpha    ABCDEFGHIJKLMNOPQRSTUVQXYZ   for  int i  0  i  lt  26    i           Console WriteLine alpha i       foreach char c in alpha           Console WriteLine c

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Unfortunately there is no ready-to-use way   You can use  char   characters    ABCDEFGHIJKLMNOPQRSTUVWXYZ  ToCharArray

User · Answer

Note also  the string has a operator   which returns a Char  and is an IEnumerable lt char gt   so for most purposes  you can use a string as a char     Hence   string alpha    ABCDEFGHIJKLMNOPQRSTUVQXYZ   for  int i  0  i  lt  26    i           Console WriteLine alpha i       foreach char c in alpha           Console WriteLine c

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char alphaStart   Char Parse  A    char alphaEnd   Char Parse  Z    for char i   alphaStart  i  lt   alphaEnd  i          string anchorLetter   i ToString

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You could do something like this  based on the ascii values of the characters   char 26  alphabet   for int i   0  i  lt 26  i           alphabet i     char  i 65     65 is the offset for capital A in the ascaii table      See the table here   You are just casting from the int value of the character to the character value - but  that only works for ascii characters not different languages etc   EDIT  As suggested by Mehrdad in the comment to a similar solution  it s better to do this   alphabet i     char  i  int   A       This casts the A character to it s int value and then increments based on this  so it s not hardcoded

User · Answer

Assuming you mean the letters of the English alphabet         for   int i   0  i  lt  26  i                   Console WriteLine  Convert ToChar  i   65                Console WriteLine   Press any key to continue          Console ReadKey

User · Answer

You could do something like this  based on the ascii values of the characters   char 26  alphabet   for int i   0  i  lt 26  i           alphabet i     char  i 65     65 is the offset for capital A in the ascaii table      See the table here   You are just casting from the int value of the character to the character value - but  that only works for ascii characters not different languages etc   EDIT  As suggested by Mehrdad in the comment to a similar solution  it s better to do this   alphabet i     char  i  int   A       This casts the A character to it s int value and then increments based on this  so it s not hardcoded

User · Answer

I don t think there is a built in way  but I think the easiest would be     char   alpha    ABCDEFGHIJKLMNOPQRSTUVWXYZ  ToCharArray

User · Answer

for  char letter    A   letter  lt    Z   letter           Debug WriteLine letter

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Unfortunately there is no ready-to-use way   You can use  char   characters    ABCDEFGHIJKLMNOPQRSTUVWXYZ  ToCharArray

User · Answer

C  3 0    char   az   Enumerable Range  a    z  -  a    1  Select i   gt   Char i  ToArray    foreach  var c in az        Console WriteLine c       yes it does work even if the only overload of Enumerable Range accepts int parameters  -

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var alphabets   Enumerable Range  A   26  Select  num    gt    char num  ToString    ToList

[c#] Generating an array of letters in the alphabet

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