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Create an alphanumeric string

I need test company names like "rnd_company_blah23haf9", "rnd_company_g356fhg57" etc.

Is it possible to do something like

import scala.util.Random
val company = s"rnd_company_${Random.alphanumeric take 10 ?????}"

if someone can fill in ????? sure.

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3 answers


Use .mkString("")

to create String

from Stream

:



scala> val company = s"rnd_company_${Random.alphanumeric take 10 mkString}"
company: String = rnd_company_BbesF0EY1o
+17


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You have an example here

scala> val x = Random.alphanumeric
x: scala.collection.immutable.Stream[Char] = Stream(Q, ?)

scala> x take 10 foreach println
Q
n
m
x
S
Q
R
e
P
B


So, you can try this:

   import scala.util.Random 
   val company = s"rnd_company_${(xx take 10).mkString}"
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Something more verbose than the answers above, but this one will help you limit the alphabet:

def randomText(textLength: Int = 10, alphabet: List[Char] = ('a' to 'd').toList) = {
    (1 to textLength).toList.map { charPos =>
        val randomIndex = (Math.random() * alphabet.length).floor.toInt
        alphabet(randomIndex)
    }.mkString("")
}
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