Question

I am in need of generating a random string with spaces and mixedCase.

This is all I got so far:

    /// <summary>     /// The Typing monkey generates random strings - can't be static 'cause it's a monkey.     /// </summary>     /// <remarks>     /// If you wait long enough it will eventually produce Shakespeare.     /// </remarks>     class TypingMonkey     {         /// <summary>         /// The Typing Monkey Generates a random string with the given length.         /// </summary>         /// <param name='size'>Size of the string</param>         /// <returns>Random string</returns>         public string TypeAway(int size)         {             StringBuilder builder = new StringBuilder();             Random random = new Random();             char ch;              for (int i = 0; i < size; i++)             {                 ch = Convert.ToChar(Convert.ToInt32(Math.Floor(26 * random.NextDouble() + 65)));                 builder.Append(ch);             }              return builder.ToString();         }     } 

I am getting only uppercase strings with no spaces – I believe the tweak should be pretty striaghtforward to get mixed case and spaces in the soup.

Any help greatly appreciated!

Answer 1

The easiest way to do this is to simply create a string with the following values:

private readonly string legalCharacters = ' abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; 

Then use the RNG to access a random element in this string:

public string TypeAway(int size) {     StringBuilder builder = new StringBuilder();     Random random = new Random();     char ch;      for (int i = 0; i < size; i++)     {         ch = legalCharacters[random.Next(0, legalCharacters.Length)];         builder.Append(ch);     }      return builder.ToString(); }