Scala Stack copyToArray() method with example

In Scala Stack class, the copyToArray() method is utilized in copying the elements of the stack 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 stack to an array.

Example #1:

// Scala program of copyToArray()
// method

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

// Creating object
object GfG
{

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

        // Creating a stack
        val s1 = Stack(1, 2, 3)

        // Print the stack
        println(s1)

        // Creating an array
        val arr: Array[Int] = Array(0, 0, 0, 0, 0)

        // Applying copyToArray method
        s1.copyToArray(arr)

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

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

Output:

Stack(1, 2, 3)
Elements in the array: 
1 2 3 0 0

Example #2:

// Scala program of copyToArray()
// method

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

// Creating object
object GfG
{

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

        // Creating a stack
        val s1 = Stack(1, 2, 3)

        // Print the stack
        println(s1)

        // Creating an array
        val arr: Array[Int] = Array(0, 0, 0, 0, 0)

        // Applying copyToArray method
        s1.copyToArray(arr, 1, 2)

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

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

Output:

Stack(1, 2, 3)
Elements in the array: 
0 1 2 0 0

Stack class, the div>