Fetching Elements: the iterator() method: public Iterator iterator() : TreeSet « Collections « Java Tutorial

1. Java Tutorial
2. Collections
3. TreeSet

Since the elements of a tree set are ordered, the order of the elements returned will be the order.

import java.util.Arrays;
import java.util.Iterator;
import java.util.Set;
import java.util.TreeSet;

public class MainClass {
  public static void main(String args[]) throws Exception {

    String elements[] = { "A", "C", "D", "G", "F" };
    Set set = new TreeSet(Arrays.asList(elements));
    Iterator iter = set.iterator();
    while (iter.hasNext()) {
      System.out.println(iter.next());
    }
  }
}

A
C
D
F
G