Generate a random character in C#

This post will discuss how to generate a random character in C#.

The Random.Next() method generates a pseudo-random value between the specified range. You can use it to generate a random character from a specified string. The idea is to generate a random number between 0 and the string’s length, and return the character at the generated random index from the string. In C#, this translates to:

using System;

public class Example

{

public static char GetRandomChar(string s)

{

Random rand = new Random();

int index = rand.Next(s.Length);

return s[index];

}

public static void Main()

{

char ch = GetRandomChar("Hello");

Console.WriteLine(ch);

}

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Alternatively, if you need to generate a random character from the specified subset of characters, you can do like below. The solution the random character from range consisting of ASCII alphabets.

using System;

public class Example

{

private static string chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";

public static char GetRandomAlphabet()

{

Random rand = new Random();

int index = rand.Next(0, chars.Length);

return chars[index];

}

public static void Main()

{

char ch = GetRandomAlphabet();

Console.WriteLine(ch);

}

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That’s all about generating a random character in C#.

Generate a random character in C#

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