The clear() method is utilized to delete all the elements of the queue.
Method Definition: def clear(): Unit
Return Type: It returns an empty queue.
Example #1:
// Scala program of clear() // method // Import Queue import scala.collection.mutable. _
// Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating a queue
val q 1 = Queue( 10 , 11 , 12 , 13 , 14 )
// Print the queue
println( "Before clear() method: " + q 1 )
// Applying clear() method
q 1 .clear()
// Display output
print( "After clear() method: " + q 1 )
}
} |
Output:
Before clear() method: Queue(10, 11, 12, 13, 14) After clear() method: Queue()
Example #2:
// Scala program of clear() // method // Import Queue import scala.collection.mutable. _
// Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating a queue
val q 1 = Queue( "geeks" , "for" , "geeks" )
// Print the queue
println( "Before clear() method: " + q 1 )
// Applying clear() method
q 1 .clear()
// Display output
print( "After clear() method: " + q 1 )
}
} |
Output:
Before clear() method: Queue(geeks, for, geeks) After clear() method: Queue()