Scala Stack equals() method with example

In Scala Stack class, the equals() method is utilized to check if two stacks consist of the same elements in the same order.

Method Definition: def equals(o: Any): Boolean

Return Type: It returns true if both the stacks are same or else returns false.

Example #1:

// Scala program of equals()
// method

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

// Creating object
object GfG
{

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

        // Creating stacks
        val s1 = Stack(1, 3, 2, 7, 6, 5)

        val s2 = Stack(1, 3, 2, 7, 6, 5)

        // Print the stack
        println("Stack_1: " + s1)

        println("Stack_2: " + s2)

        // Applying equals method
        val result = s1.equals(s2)

        // Display output
        println("Stack_1 == Stack_2: " + result)
    }
}

Output:

Stack_1: Stack(1, 3, 2, 7, 6, 5)
Stack_2: Stack(1, 3, 2, 7, 6, 5)
Stack_1 == Stack_2: true

Example #2:

// Scala program of equals()
// method

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

// Creating object
object GfG
{

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

        // Creating stacks
        val s1 = Stack(1, 3, 2, 7, 6, 5)

        val s2 = Stack(7, 3, 12, 7, 6, 5)

        // Print the stack
        println("Stack_1: " + s1)

        println("Stack_2: " + s2)

        // Applying equals method
        val result = s1.equals(s2)

        // Display output
        println("Stack_1 == Stack_2: " + result)
    }
}

Output:

Stack_1: Stack(1, 3, 2, 7, 6, 5)
Stack_2: Stack(7, 3, 12, 7, 6, 5)
Stack_1 == Stack_2: false

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