Scala Queue +=() method with example

Scala Queue init() method with example

Last Updated : 29 Oct, 2019

The init() method is utilized to return a new queue that consists of all the elements except the last one.

Method Definition: def init: Queue[A]

Return Type: It returns a new queue that consists of all the elements except the last one.

Example #1:

// Scala program of init()  
// 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 init method  
        val result = q1.init 
          
        // Display output 
        print("Elements of the queue except the last one: " + result) 
          
    }  
}  

Output:

Queue(1, 3, 2, 7, 6, 5)
Elements of the queue except the last one: Queue(1, 3, 2, 7, 6)

Example #2:

// Scala program of init()  
// 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 init method  
        val result = q1.init 
          
        // Display output 
        print("Elements of the queue except the last one: " + result) 
          
    }  
}  

Output:

Queue(5, 3, 2, 7, 6, 1)
Elements of the queue except the last one: Queue(5, 3, 2, 7, 6)

Scala Queue +=() method with example

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