Scala TreeSet foreach() method with example

In Scala TreeSet class, the foreach() method is utilized to apply a given function to all the elements of the TreeSet.

Method Definition: def foreach[U](f: (A) => U): Unit

Return Type: It returns all the elements of the TreeSet after applying the given function to each of them.

Example #1:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Scala program of foreach() 
// method 
  
// Import TreeSet
import scala.collection.mutable._
  
// Creating object 
object GfG 
  
    // Main method 
    def main(args:Array[String]) 
    
      
        // Creating TreeSet
        val t1 = TreeSet(2, 4, 6, 7, 8, 9
          
        // Print the TreeSet
        println(t1)
  
        // Applying foreach method to print the TreeSet
        print("Elements in the TreeSet: "
        t1.foreach(x => print(x + " "))  
          
    

chevron_right


Output:

TreeSet(2, 4, 6, 7, 8, 9)
Elements in the TreeSet: 2 4 6 7 8 9

Example #2:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Scala program of foreach() 
// method 
  
// Import TreeSet
import scala.collection.mutable._
  
// Creating object 
object GfG 
  
    // Main method 
    def main(args:Array[String]) 
    
      
        // Creating TreeSet
        val t1 = TreeSet(2, 4, 6, 7, 8, 9
          
        // Print the TreeSet
        println(t1
          
        // Applying foreach method  
        t1.foreach(x => println(x + " times " + x +" = " + x*x))  
          
    

chevron_right


Output:

TreeSet(2, 4, 6, 7, 8, 9)
2 times 2 = 4
4 times 4 = 16
6 times 6 = 36
7 times 7 = 49
8 times 8 = 64
9 times 9 = 81



My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.


Article Tags :

Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.