Groovy: Generate random string from given character set

Question

Using Groovy, I\'d like to generate a random sequence of characters from a given regular expression.

• Allowed charaters are: [A-Z0-9]
• Length o

Answer 1

Here is a single line command/statement to generate random text string

print new Random().with {(1..9).collect {(('a'..'z')).join()[ nextInt((('a'..'z')).join().length())]}.join()}

or

def randText = print new Random().with {(1..9).collect {(('a'..'z')).join()[ nextInt((('a'..'z')).join().length())]}.join()}