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Scala Queue +=() method with example

Last Updated : 18 Oct, 2019
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The +=() method is utilized to add an element at the back of a given queue.

Method Definition: def +=(elem: A): Queue.this.type

Return Type: It returns the given queue with an element added at its back.

Example #1:




// 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", "for"
          
        // Applying +=() method 
        val result = q1.+=("geeks")
          
        // Display output
        print(result)   
          
    


Output:

Queue(geeks, for, geeks)

Example #2:




// 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
          
        // Applying +=() method 
        val result = q1.+=(5)
          
        // Display output
        print(result)   
          
    


Output:

Queue(1, 2, 3, 4, 5)


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