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Scala Iterator take() method with example

  • Last Updated : 13 Aug, 2019

The take() method belongs to the concrete value member of the class Abstract Iterator. It is utilized to select the first n elements of the stated iterator.

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

Where, n is the number of element to take from the given iterator.

Return Type: It returns the first n values from the stated iterator, or the whole iterator, whichever is shorter.

Example #1:






// Scala program of take()
// method
  
// Creating object
object GfG
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating a Iterator 
        val iter = Iterator(2, 3, 5, 7, 8, 9)
          
        // Applying take method 
        val iter1 = iter.take(4)
          
        // Applying while loop and
        // hasNext() method
        while(iter1.hasNext)
        {
          
            // Applying next() method and
            // displaying output
            println(iter1.next())
        }
    }
}
Output:
2
3
5
7

Here, first four elements are displayed as we have selected first four elements in the method.
Example #2:




// Scala program of take()
// method
  
// Creating object
object GfG
  
    // Main method
    def main(args:Array[String])
    {
      
        // Creating a Iterator 
        val iter = Iterator(2, 3, 5, 7, 8, 9)
          
        // Applying take method 
        val iter1 = iter.take(7)
          
        // Applying while loop and
        // hasNext() method
        while(iter1.hasNext)
        {
          
            // Applying next() method and
            // displaying output
            println(iter1.next())
        }
    }
}
Output:
2
3
5
7
8
9

Here, the whole iterator is displayed as the number of elements in that is shorter than the number of elements selected by the method. so, the shorter one is displayed.




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