How to convert byte array to string in Scala?

Program to convert a byte array to string

// Program to convert Byte Array to String
object MyObject {
    def main(args: Array[String]) {
        val byteArray = Array[Byte](73, 110, 99, 108, 117, 100, 101, 104, 101, 108, 112)
        val convertedString = new String(byteArray) 
        println("The converted string '" + convertedString + "'")
    }
}

Output:

The converted string 'Includehelp'

Explanation:

In the above code, we have created a byte array named byteArray and converted it to a string by passing the byteArray while creating a string named convertedString using new String().

2) Converting byte array to String using mkString method

We can use the mkString method present in Scala to create a string from an array. But prior to conversion, we have to convert byte array to character array.

Syntax:

    (byteArray.map(_.toChar)).mkString

Program to convert byte array to String using mkString method

// Program to convert Byte Array to String
object MyObject {
    def main(args: Array[String]) {
        val byteArray = Array[Byte](73, 110, 99, 108, 117, 100, 101, 104, 101, 108, 112)
        val convertedString = byteArray.map(_.toChar).mkString
        println("The converted string '" + convertedString + "'")
    }
}

Output:

The converted string 'Includehelp'

Explanation:

In the above code, we have used the mkString method to convert a byte array to string. We have created a byte Array named byteArray and then used the mkString method to convert it to a string. But before conversion, we have converted the byte to their character equivalent using .map(_.toChar) method. The result of this is stored to a string named convertedString which is then printed using println method.