LongStream iterator() in Java

LongStream iterator() returns an iterator for the elements of this stream. It is a terminal operation i.e, it may traverse the stream to produce a result or a side-effect.

Syntax :

PrimitiveIterator.OfLong iterator()

Where, PrimitiveIterator.OfLong is an Iterator 
specialized for long values.

Return Value : LongStream iterator() returns the element iterator for this stream.



Example 1 :

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// Java code for LongStream iterator()
import java.util.*;
import java.util.stream.LongStream;
  
class GFG {
  
    // Driver code
    public static void main(String[] args)
    {
        // Creating an LongStream
        LongStream stream = LongStream.of(2L, 4L, 6L, 8L);
  
        // Using LongStream iterator() to return
        // an iterator for elements of the stream
        PrimitiveIterator.OfLong answer = stream.iterator();
  
        // Displaying the stream elements
        while (answer.hasNext()) {
            System.out.println(answer.nextLong());
        }
    }
}

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Output:

2
4
6
8

Example 2 :

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// Java code for LongStream iterator()
import java.util.*;
import java.util.stream.LongStream;
  
class GFG {
  
    // Driver code
    public static void main(String[] args)
    {
        // Creating an LongStream which includes
        // lower bound element but excludes
        // upper bound element
        LongStream stream = LongStream.range(2L, 8L);
  
        // Using LongStream iterator() to return
        // an iterator for elements of the stream
        PrimitiveIterator.OfLong answer = stream.iterator();
  
        // Displaying the stream elements
        while (answer.hasNext()) {
            System.out.println(answer.nextLong());
        }
    }
}

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Output:

2
3
4
5
6
7


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