The exists() method is utilized to test whether a predicate holds for some of the elements of the set 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 set else it returns false.
Example #1:
// Scala program of exists() // method // Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating a list
val s 1 = Set( 1 , 2 , 3 , 4 , 5 )
// Applying exists method
val result = s 1 .exists(y => {y % 3 == 0 })
// Displays output
println(result)
}
} |
Output:
true
Example #2:
// Scala program of exists() // method // Creating object object GfG
{ // Main method
def main(args : Array[String])
{
// Creating a list
val s 1 = Set( 1 , 2 , 3 , 4 , 5 )
// Applying exists method
val result = s 1 .exists(y => {y % 7 == 0 })
// Displays output
println(result)
}
} |
Output:
false