Java Stream How to - Get Iterator after filter








Question

We would like to know how to get Iterator after filter.

Answer

import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
//  w w  w . j  av  a 2  s  .c  o m
public class Main {

  public static void main(String[] args) {
    List<Integer> _numbers = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
    Iterator<Integer> iter = _numbers.stream().filter(value -> value % 2 == 0).iterator();
    
    while(iter.hasNext()){
      System.out.println(iter.next());
    }
  }
}

The code above generates the following result.