Making string of 2-d array in scala

Question

So I have the following in Scala:

scala> val example = "hello \tmy \nname \tis \nmaria \tlee".split("\n").map(_.split("\\s+"))
example: Array[Array[String]] = Array(Array(hello, my), Array(name, is), Array(maria, lee))

I want to take each 1-d array and make it into a string, and make an array of these strings (strings should be comma separated). How do I do this?

Brian · Accepted Answer · 2013-07-23 22:03:42Z

6

scala> example.map(_.mkString)
res0: Array[String] = Array(hellomy, nameis, marialee)

To make the strings comma separated:

scala> example.map(_.mkString(","))
res0: Array[String] = Array(hello,my, name,is, maria,lee)

edited Jul 23, 2013 at 22:03

answered Jul 23, 2013 at 19:27

Brian

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2 Comments

vsingal5 Over a year ago

what if I want to comma separate the strings?

Brian Over a year ago

mkString takes a separator parameter so call mkString with ",". Calling it with no parameter uses a default value which is apparently an empty string.

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