Scala Queue count() method with example
Last Updated :
18 Oct, 2019
The count() method is utilized to count the number of elements in the queue that satisfies a given predicate.
Method Definition: def count(p: (A) => Boolean): Int
Return Type: It returns the count the number of elements in the queue that satisfies a given predicate.
Example #1:
import scala.collection.mutable. _
object GfG
{
def main(args : Array[String])
{
val q 1 = Queue( 1 , 2 , 3 , 4 , 5 )
println(q 1 )
val result = q 1 .count(z => true )
print( "Number of element in queue: " + result)
}
}
|
Output:
Queue(1, 2, 3, 4, 5)
Number of element in queue: 5
Example #2:
import scala.collection.mutable. _
object GfG
{
def main(args : Array[String])
{
val q 1 = Queue( 1 , 2 , 3 , 4 , 5 )
println(q 1 )
val result = q 1 .count(z => {z % 2 == 0 })
print( "Number of element in queue divisible by 2: " + result)
}
}
|
Output:
Queue(1, 2, 3, 4, 5)
Number of element in queue divisible by 2: 2
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