Scala Map iterator method with example

The iterator method is utilized to give an iterator.

Method Definition: def iterator: Iterator[(A, B)]

Return Type: It returns a non-empty iterator for non-empty map and returns an empty iterator for empty map.



Example #1:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Scala program of iterator
// method
  
// Creating object
object GfG
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating a map
        val m1 = Map("geeks" -> 5, "for" -> 3, "cs" -> 2
          
        // Applying iterator method
        val result = m1.iterator
          
        // Displays output
        println(result)
      
    }
}

chevron_right


Output:

non-empty iterator

Example #2:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Scala program of iterator
// method
  
// Creating object
object GfG
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating a map
        val m1 = Map() 
          
        // Applying iterator method
        val result = m1.iterator
          
        // Displays output
        println(result)
      
    }
}

chevron_right


Output:

empty iterator


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.