How to ensure that strings are in UTF-8?

Question

How to convert this string the surveyÂ’s rulesto UTF-8in Scala?

I tried these roads but didn't work:

scala> val text = "the surveyÂ’s rules"
text: String = the surveyÂ’s rules

scala> scala.io.Source.fromBytes(text.getBytes(), "UTF-8").mkString
res17: String = the surveyÂ’s rules

scala> new String(text.getBytes(),"UTF8")
res21: String = the surveyÂ’s rules

Ok, I decided that way. Not conversion, but simple reading

implicit val codec = Codec("US-ASCII").onMalformedInput(CodingErrorAction.IGNORE).onUnmappableCharacter(CodingErrorAction.IGNORE)

val src = Source.fromFile(new File (folderDestination + name + ".csv"))
val src2 = Source.fromFile(new File (folderDestination + name + ".csv"))

val reader = CSVReader.open(src.reader())

Answer 1

Note that when called text.getBytes()without arguments, you actually get an array of bytes representing the default encoded string for the platform. For example, on Windows, this may be some single-byte encoding; on Linux it might be UTF-8 already.

, getBytes(). Java 7 :

import java.nio.charset.StandardCharsets

val bytes = text.getBytes(StandardCharsets.UTF_8)

Java 6 :

import java.nio.charset.Charset

val bytes = text.getBytes(Charset.forName("UTF-8"))

bytes UTF-8.

Answer 2

JVM file.encoding UTF-8 :

-Dfile.encoding=UTF-8

, UTF-8 .

scala, scala -Dfile.encoding=UTF-8.