Scala List forall() method with example
The forall() method is utilized to check if the given predicate satisfies all the elements of the list or not.
Method Definition: def forall (p: (a) => Boolean) : Boolean
Return Type: It returns true if the stated predicate holds true for all the elements of the list else it returns false.
Example #1:
// Scala program of forall() // method // Creating object object GfG { // Main method def main(args:Array[String]) { // Creating a list val m1 = List(3, 6, 12, 9, 21) // Applying forall method val result = m1.forall(y => {y % 3 == 0}) // Displays output println(result) } } |
Output:
true
Example #2:
// Scala program of forall() // method // Creating object object GfG { // Main method def main(args:Array[String]) { // Creating a list val m1 = List(3, 6, 2, 9, 21) // Applying forall method val result = m1.forall(y => {y % 3 == 0}) // Displays output println(result) } } |
Output:
false