Monday 21 April 2014

NavigableSet : iterator : Get the iterator for this Set

Iterator<E> iterator()
Returns an iterator over the elements in this set, in ascending order.

import java.util.*;

class NavigableSetIterator{
 public static void main(String args[]){
  NavigableSet<Integer> mySet = new TreeSet<> ();
  
  /* Add Elements too mySet */
  for(int i=20; i>0; i-=2){
   mySet.add(i);
  }
  
  System.out.println("Elements in mySet are");
  System.out.println(mySet+"\n");
  
  Iterator<Integer> iter1 = mySet.iterator();
  
  System.out.println("Printing Elements using iterator");
  while(iter1.hasNext()){
   System.out.print(iter1.next() + " ");
  }
 }
}

Output
Elements in mySet are
[2, 4, 6, 8, 10, 12, 14, 16, 18, 20]

Printing Elements using iterator
2 4 6 8 10 12 14 16 18 20







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