Scala Map clone() method with example

The clone() method is utilized to make a copy of the receivers object. value clone is a member of scala.collection.mutable.Map[String, Int].

Method Definition: def clone(): Map[A, B]

Return Type: It returns the copy of the map used.

Example #1:

// Scala program of clone()
// method

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {

        // Creating a map
        val m1 = scala.collection.mutable.Map("geeks" -> 5, "for" -> 3)

        // Applying clone method
        val result = m1.clone()

        // Displays output
        println(result)

    }
}

Output:

Map(geeks -> 5, for -> 3)

Here, a mutable map is used as clone() is a member of scala.collection.mutable.Map[String, Int].
Example #2:

// Scala program of clone()
// method

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {

        // Creating a map
        val m1 = scala.collection.immutable.Map("geeks" -> 5, "for" -> 3)

        // Applying clone method
        val result = m1.clone()

        // Displays output
        println(result)

    }
}

Output:

prog.scala:16: error: value clone is not a member of scala.collection.immutable.Map[String,Int]
val result = m1.clone()
^
one error found

Here, one error is found as immutable map is utilized but clone method is a member of scala.collection.mutable.Map[String, Int].