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

Home
Java Tutorial
1.Language
2.Data Type
3.Operators
4.Statement Control
5.Class Definition
6.Development
7.Reflection
8.Regular Expressions
9.Collections
10.Thread
11.File
12.Generics
13.I18N
14.Swing
15.Swing Event
16.2D Graphics
17.SWT
18.SWT 2D Graphics
19.Network
20.Database
21.Hibernate
22.JPA
23.JSP
24.JSTL
25.Servlet
26.Web Services SOA
27.EJB3
28.Spring
29.PDF
30.Email
31.J2ME
32.J2EE Application
33.XML
34.Design Pattern
35.Log
36.Security
37.Apache Common
38.Ant
39.JUnit
Java Tutorial » Collections » 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














9.22.TreeSet
9.22.1.TreeSet Class
9.22.2.Creating a TreeSet
9.22.3.Get Synchronized Set from TreeSet
9.22.4.Copy all elements in TreeSet to an Object Array
9.22.5.Get Head Set from Java TreeSet
9.22.6.Get lowest and highest value stored in TreeSet
9.22.7.Get Size of TreeSet
9.22.8.Get Sub Set from TreeSet
9.22.9.Get Tail Set from TreeSet
9.22.10.Iterate through elements of TreeSet
9.22.11.Check if a particular value exists in TreeSet
9.22.12.Remove specified element from TreeSet
9.22.13.Remove all elements from TreeSet
9.22.14.The second two constructors are copy constructors
9.22.15.Sort items in a Set
9.22.16.To add a single element: the add() method: public boolean add(Object element)
9.22.17.Retrieving the Ends for a TreeSet
9.22.18.Fetching Elements: the iterator() method: public Iterator iterator()
9.22.19.Working with Subsets
9.22.20.The third method subSet() provides the end points: public SortedSet subSet(Object fromElement, Object toElement)
9.22.21.headset, tailset and subset
9.22.22.Viewing Subsets
9.22.23.Looping through a sorted set backwards
9.22.24.TreeSet.descendingSet
java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.