RandomString
This utility class provides methods for generating random strings, consisting of alphanumeric characters.
Fields
LETTERS
A char array containing uppercase letters (A-Z).
NUMBERS
A char array containing digits (1-9).
Methods
randomLetter()
Returns a random uppercase letter from the LETTERS array.
randomNumber()
Returns a random digit from the NUMBERS array.
randomChar()
Returns a random character, which can be either a letter or a number, chosen randomly.
randomString(int length)
Generates a random string of the specified length. The string will consist exclusively of alphanumeric characters (letters and numbers).
length: The desired length of the random string.
Returns the generated random string.