Scala Stack clear() method with example

In Scala Stack class, the clear() method is utilized to delete all the elements of the stack.

Method Definition: def clear(): Unit

Return Type: It returns an empty queue.

Example #1:

// Scala program of clear()
// method

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

// Creating object
object GfG
{

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

        // Creating stack
        val s1 = Stack(1, 2, 3, 4, 5)

        // Print the stack
        println("Before clear() method: " + s1)

        // Applying clear method
        val result = s1.clear

        // Displays output
        print("After clear() method: " + result)
    }
}

Output:

Before clear() method: Stack(1, 2, 3, 4, 5)
After clear() method: ()

Example #2:

// Scala program of clear()
// method

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

// Creating object
object GfG
{

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

        // Creating stack
        val s1 = Stack("geeks", "for", "geeks")

        // Print the stack
        println("Before clear() method: " + s1)

        // Applying clear method
        val result = s1.clear

        // Displays output
        print("After clear() method: " + result)
    }
}

Output:

Before clear() method: Stack(geeks, for, geeks)
After clear() method: ()