Scala Tutorial - Scala Strings

Scala's String is built on Java's String and adds additional features such as string interpolation to Java's String.

Example

Following example illustrates a string literal using double quotes:

object Main {
  def main(args: Array[String]) {
      val hello = "Hello" 
      println(hello);
  }
}

String Interpolation

String interpolation is a mechanism to combine values inside a string with variables.

The notation for interpolation in Scala is an s prefix added before the first double quote of the string.

Then dollar sign operator $ can be used to reference the variable.

The following code illustrates the usageof string interpolation.

object Main {
  def main(args: Array[String]) {
      val bookTitle = "Scala" // creating a String 
      // String interpolation 
      println(s"Book Title is ${ bookTitle}" );
  }
}