Scala TreeSet copyToArray() method with example

In Scala TreeSet class, the copyToArray() method is utilized in copying the elements of the TreeSet to an Array.

Method Definition: def copyToArray[B >: A](xs: Array[B], start: Int, len: Int): Int

Parameters:
xs: It denotes the array where elements are copied.
start: It denotes the starting index for the copy to takes place. Its default value is 0.
len: It denotes the number of elements to copy. Its default value is the length of the set.

Return Type: It returns the elements of the set to an array.

Example #1:

// Scala program of copyToArray()
// method

// Import TreeSet
import scala.collection.mutable._

// Creating object
object GfG
{

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

        // Creating TreeSet
        val t1 = TreeSet(2, 1, 3, 4, 5)

        // Print the TreeSet
        println(t1)

        // Creating an array
        val arr = Array(0, 0, 0, 0, 0)

        // Applying copyToArray() method
        t1.copyToArray(arr)

        // Displays output
        println("Elements in the array: ")

        for(elem <- arr)
            print(elem + " ")

    }
}

Output:

TreeSet(1, 2, 3, 4, 5)
Elements in the array: 
1 2 3 4 5

Example #2:

// Scala program of copyToArray()
// method

// Import TreeSet
import scala.collection.mutable._

// Creating object
object GfG
{

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

        // Creating TreeSet
        val t1 = TreeSet(2, 1, 3, 4, 5)

        // Print the TreeSet
        println(t1)

        // Creating an array
        val arr = Array(0, 0, 0, 0, 0)

        // Applying copyToArray() method
        t1.copyToArray(arr, 1, 2)

        // Displays output
        println("Elements in the array: ")

        for(elem <- arr)
            print(elem + " ")

    }
}

Output:

TreeSet(1, 2, 3, 4, 5)
Elements in the array: 
0 1 2 0 0