In Scala immutable TreeSet class
, the filter() method is utilised to return a new TreeSet that consists of all the elements that satisfy a given predicate.
Method Definition: def filter(pred: (A) => Boolean): TreeSet[A]
Return Type: It returns a new TreeSet that consists of all the elements that satisfy a given predicate.
Example #1:
// Scala program of filter() // method // Import TreeSet import scala.collection.immutable. _
// Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating TreeSet
val t 1 = TreeSet( 1 , 3 , 2 , 7 , 6 , 5 )
// Print the TreeSet
println(t 1 )
// Applying filter() method
val result = t 1 .filter(x => {x % 2 == 1 })
// Displays output
println( "Odd Elements: " + result)
}
} |
Output:
TreeSet(1, 2, 3, 5, 6, 7) Odd Elements: TreeSet(1, 3, 5, 7)
Example #2:
// Scala program of filter() // method // Import TreeSet import scala.collection.immutable. _
// Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating TreeSet
val t 1 = TreeSet( 1 , 3 , 2 , 7 , 6 , 5 )
// Print the TreeSet
println(t 1 )
// Applying filter() method
val result = t 1 .filter(x => {x % 2 == 0 })
// Displays output
println( "Even Elements: " + result)
}
} |
Output:
TreeSet(1, 2, 3, 5, 6, 7) Even Elements: TreeSet(2, 6)
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