Scala Queue ++() method with example

Scala Queue ++() method with example

Last Updated : 24 Oct, 2019

The ++() method is utilized to return a new queue with all the elements of the queue appended at the back of another queue.

Method Definition: def ++[B >: A](suffix: IterableOnce[B]): Queue[B] Return Type: It return a new queue with all the elements of the queue appended at the back of another queue.

Example #1:

Scala

// Scala program of ++() 
// method 

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

// Creating object 
object GfG 
{ 

    // Main method 
    def main(args:Array[String]) 
    { 
        // Creating a queue 
        val q1 = Queue(1, 2, 3, 4, 5) 
        
        val q2 = Queue(11, 12, 13, 14, 15) 
        
        // Applying ++() method 
        val result = q1.++(q2)
            
        // Display output
        print(result)   
        
    } 
}

Output:

Queue(1, 2, 3, 4, 5, 11, 12, 13, 14, 15)

Example #2:

Scala

// Scala program of ++() 
// method 

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

// Creating object 
object GfG 
{ 

    // Main method 
    def main(args:Array[String]) 
    { 
        // Creating a queue 
        val q1 = Queue("geeks")
        
        val q2 = Queue("for", "geeks")
        
        // Applying ++() method 
        val result = q1 ++ q2
            
        // Display output
        print(result) 
        
    } 
}

Output:

Queue(geeks, for, geeks)

Scala Queue ++() method with example

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