Scala Set foreach() method with example
The foreach() method is utilized to apply the given function to all the elements of the set.
Method Definition: def foreach(f: (A) => Unit): Unit
Return Type: It returns all the elements of the set after applying the given function to each of them.
Example #1:
// Scala program of foreach() // method // Creating object object GfG { // Main method def main(args : Array[String]) { // Creating a set val s 1 = Set( 3 , 7 , 12 , 9 , 21 ) // Applying foreach method s 1 .foreach(x => println(x)) } } |
Output:
21 9 12 7 3
Example #2:
// Scala program of foreach() // method // Creating object object GfG { // Main method def main(args : Array[String]) { // Creating a set val s 1 = Set( 1 , 2 , 3 , 4 , 5 ) // Applying foreach method s 1 .foreach(x => println(x + " times " + x + " = " + x*x)) } } |
Output:
5 times 5 = 25 1 times 1 = 1 2 times 2 = 4 3 times 3 = 9 4 times 4 = 16
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