Scala Stack push() method with example

In Scala Stack class, the push() method is utilized to add an element on the top of the stack.

Method Definition: def push(elem: A): Stack.this.type

Return Type: It adds an element on the top of the stack.

Example #1:

// Scala program of push()
// method

import scala.collection.mutable.Stack

// Creating object
object GfG
{

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

        // Creating a stack
        var s = Stack[Int]()

        // Applying push method
        s.push(1)
        s.push(2)
        s.push(3)
        s.push(4)

        // Print the Stack
        println(s)

    }
}

Output:

Stack(4, 3, 2, 1)

Example #2:

// Scala program of push()
// method

import scala.collection.mutable.Stack

// Creating object
object GfG
{

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

        // Creating a stack
        var s = Stack[String]()

        // Applying push method
        s.push("C++")
        s.push("Java")
        s.push("Python")
        s.push("Scala")

        // Print the Stack
        println(s)

    }
}

Output:

Stack(Scala, Python, Java, C++)