In Scala ListSet, exists() method is utilized to check if the given predicate satisfies the elements of the listSet or not.
Method Definition: def exists(p: (A) => Boolean): Boolean
Return Type: It returns true if the stated predicate holds true for some elements of the listset else it returns false.
Example 1:
// Scala program of exists() // method import scala.collection.immutable. _
// Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating Listset
val m 1 = ListSet( 1 , 2 , 3 , 4 , 5 , 7 )
// Applying exists method
val result = m 1 .exists( _== 9 )
// Displays output
println(result)
}
} |
Output:
false
Example 2:
// Scala program of exists() // method import scala.collection.immutable. _
// Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating listset
val m 1 = ListSet( 1 , 2 , 3 , 4 , 5 , 7 )
// Applying exists method
val result = m 1 .exists( _> 9 )
// Displays output
println(result)
}
} |
Output:
false