The foreach() method is utilized to apply a given function to all the elements of the queue.
Method Definition: def foreach[U](f: (A) => U): Unit
Return Type: It returns all the elements of the queue after applying the given function to each of them.
Example #1:
// Scala program of foreach() // method // Import Queue import scala.collection.mutable. _
// Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating queues
val q 1 = Queue( 1 , 3 , 2 , 7 , 6 , 5 )
// Applying foreach method to print the queue
print( "Elements in the queue: " )
q 1 .foreach(x => print(x + " " ))
}
} |
Output:
Elements in the queue: 1 3 2 7 6 5
Example #2:
// Scala program of foreach() // method // Import Queue import scala.collection.mutable. _
// Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating queues
val q 1 = Queue( 1 , 3 , 2 , 7 , 6 , 5 )
// Print the queue
println(q 1 )
// Applying foreach method
q 1 .foreach(x => println(x + " times " + x + " = " + x*x))
}
} |
Output:
Queue(1, 3, 2, 7, 6, 5) 1 times 1 = 1 3 times 3 = 9 2 times 2 = 4 7 times 7 = 49 6 times 6 = 36 5 times 5 = 25