Question

How to create a list containing a range of characters in C#

Answer 1

using System;
using System.Linq;
using System.Collections.Generic;
 
class Program
{
    static List<char> CreateCharacterRangeList(char startChar, char endChar) {
        if (endChar < startChar) {
            throw new ArgumentException("End character must be greater than or equal to start character.");
        }
 
        return Enumerable.Range(startChar, endChar - startChar + 1)
                         .Select(i => (char)i)
                         .ToList();
    }
 
    static void PrintCharacters(List<char> charList) {
        foreach (char ch in charList) {
            Console.Write(ch + " ");
        }
        Console.WriteLine();
    }
 
    static void Main()
    {
        char start = 'a';
        char end = 'm';
 
        List<char> charList = CreateCharacterRangeList(start, end);
         
        PrintCharacters(charList);
    }
}
 
 
 
/*
run:
 
a b c d e f g h i j k l m 
 
*/

 

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Answer 2

using System;
using System.Collections.Generic;
 
class Program
{
    static List<char> CreateCharacterRangeList(char start, char end) {
        List<char> charList = new List<char>();
         
        for (char ch = start; ch <= end; ch++) {
            charList.Add(ch);
        }
         
        return charList;
    }
 
    static void PrintCharacters(List<char> charList) {
        foreach (char ch in charList) {
            Console.Write(ch + " ");
        }
        Console.WriteLine();
    }
 
    static void Main()
    {
        char start = 'a';
        char end = 'm';
 
        List<char> charList = CreateCharacterRangeList(start, end);
         
        PrintCharacters(charList);
    }
}
 
 
 
/*
run:
 
a b c d e f g h i j k l m 
 
*/

 

70+ SQL courses for beginners and professionals