In Scala immutable TreeSet class
, the count() method is utilized to count the number of elements in the TreeSet 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 TreeSet that satisfies a given predicate.
Example #1:
// Scala program of count() // method // Import TreeSet import scala.collection.immutable. _
// Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating TreeSet
val t 1 = TreeSet( 2 , 1 , 3 , 4 , 5 )
// Print the TreeSet
println(t 1 )
// Applying count() method
val result = t 1 .count(x => {x % 2 == 0 })
// Display output
print( "Number of even element in the TreeSet: " + result)
}
} |
Output:
TreeSet(1, 2, 3, 4, 5) Number of even element in the TreeSet: 2
Example #2:
// Scala program of count() // method // Import TreeSet import scala.collection.immutable. _
// Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating TreeSet
val t 1 = TreeSet( 2 , 1 , 3 , 4 , 5 )
// Print the TreeSet
println(t 1 )
// Applying count() method
val result = t 1 .count(x => {x % 2 ! = 0 })
// Display output
print( "Number of odd element in the TreeSet: " + result)
}
} |
Output:
TreeSet(1, 2, 3, 4, 5) Number of odd element in the TreeSet: 3
Article Tags :