In Scala immutable TreeSet class
, the forall() method is utilized to check if a predicate holds true for all the elements of the TreeSet.
Method Definition: def forall(p: (A) => Boolean): Boolean
Return Type: It returns true if the predicate holds true for all the elements of the TreeSet or else returns false.
Example #1:
// Scala program of forall() // 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 , 4 , 6 , 7 , 8 , 9 )
// Print the TreeSet
println(t 1 )
// Applying forall() method
val result = t 1 .forall(x => {x % 7 == 0 })
// Displays output
println( "All the elements are divisible by 7: " + result)
}
} |
Output:
TreeSet(2, 4, 6, 7, 8, 9) All the elements are divisible by 7: false
Example #2:
// Scala program of forall() // 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 , 4 , 6 , 8 )
// Print the TreeSet
println(t 1 )
// Applying forall() method
val result = t 1 .forall(x => {x % 2 == 0 })
// Displays output
println( "All the elements are even: " + result)
}
} |
Output:
TreeSet(2, 4, 6, 8) All the elements are even: true
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