Open In App

Scala Queue head() method with example

Improve
Improve
Like Article
Like
Save
Share
Report

The head() method is utilized return the first element of the queue.

Method Definition: def head: A

Return Type: It returns the first element of the queue.

Example #1:




// Scala program of head() 
// method 
  
// Import Queue  
import scala.collection.mutable._
  
// Creating object 
object GfG 
  
    // Main method 
    def main(args:Array[String]) 
    
      
        // Creating queues 
        val q1 = Queue(1, 3, 2, 7, 6, 5
          
        // Print the queue
        println(q1)
          
        // Applying head method 
        val result = q1.head
          
        // Display output
        print("First element of the queue: " + result)
          
    


Output:

Queue(1, 3, 2, 7, 6, 5)
First element of the queue: 1

Example #2:




// Scala program of head() 
// method 
  
// Import Queue  
import scala.collection.mutable._
  
// Creating object 
object GfG 
  
    // Main method 
    def main(args:Array[String]) 
    
      
        // Creating queues 
        val q1 = Queue(5, 3, 2, 7, 6, 1
          
        // Print the queue
        println(q1)
          
        // Applying head method 
        val result = q1.head
          
        // Display output
        print("First element of the queue: " + result)
          
    


Output:

Queue(5, 3, 2, 7, 6, 1)
First element of the queue: 5


Last Updated : 29 Oct, 2019
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads