In Scala immutable TreeSet class
, the exists() method is utilised to check whether a predicate holds for any of the elements of the TreeSet.
Method Definition: def exists(p: (A) => Boolean): Boolean
Return Type: It returns true if the predicate holds true for any of the elements of the TreeSet or else returns false.
Example #1:
// Scala program of exists() // 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 exists() method
val result = t 1 .exists(x => {x % 7 == 0 })
// Displays output
println( "Element divisible by 7 exists: " + result)
}
} |
Output:
TreeSet(1, 2, 3, 5, 6, 7) Element divisible by 7 exists: true
Example #2:
// Scala program of exists() // 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 exists() method
val result = t 1 .exists(x => {x == 10 })
// Displays output
println( "Element 10 exists: " + result)
}
} |
Output:
TreeSet(1, 2, 3, 5, 6, 7) Element 10 exists: false
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