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Scala Iterator drop() method with example

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The drop() method belongs to the concrete value member of the class Abstract Iterator. It is defined in the classes Iterator and IterableOnceOps. It is utilized to move the iterator n places ahead and if n is greater than the iterator’s length, then it will throw an exception.

Method Definition : def drop(n: Int): Iterator[A]

Where, n is the number of elements to be dropped from the stated iterator.

Return Type : It returns all the elements of the stated iterator except the first n ones.

Example #1:




// Scala program of drop()
// method
  
// Creating object
object GfG
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating an Iterator 
        val iter = Iterator(4, 6, 10, 11, 13)
          
        // Applying drop method
        val x = iter.drop(4)
          
        // Applying next method
        val result = x.next()
          
        // Displays output
        println(result)
      
    }
}


Output:

13

Here, the first four elements are dropped and all the elements after that are returned.
Example #2:




// Scala program of drop()
// method
  
// Creating object
object GfG
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating an Iterator 
        val iter = Iterator(2, 3, 4)
          
        // Applying drop method
        val x = iter.drop(1)
          
        // Applying next method
        val result = x.next()
          
        // Displays output
        println(result)
          
    }
}


Output:

3


Last Updated : 30 Jun, 2019
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