Java-Gaming.org Hi !
Featured games (83)
games approved by the League of Dukes
Games in Showcase (512)
Games in Android Showcase (119)
games submitted by our members
Games in WIP (576)
games currently in development
News: Read the Java Gaming Resources, or peek at the official Java tutorials
 
    Home     Help   Search   Login   Register   
Pages: [1]
  ignore  |  Print  
  Using the Enumeration interface?  (Read 566 times)
0 Members and 1 Guest are viewing this topic.
Offline Dreamcatchermatt

Junior Duke





« Posted 2010-05-18 18:24:51 »

Hi all,

I'm using a custom binary tree data structure to store all my game objects.

I want to be able to use the for-each loop to itterate through my binary tree for things like calling the update and render methods on each of the elements.

I think that i can use the Enumeration interface to do this, but i'm not sure how. All the tutorials that I have found seem to be assuming that i'm using the enumeration interface with a class that already implements all the methods needed, so all I can find is -

You have a collection -> Black-Box MAGIC! -> enumeration now works
Undecided

Anyone come across this before or have any hints?

Chears, Matt
Offline ryanm

Senior Duke


Projects: 1
Exp: 15 years


Used to be bleb


« Reply #1 - Posted 2010-05-18 18:57:56 »

There's no magic I'm afraid, you've made a custom collection class so it's up to you to make it implement the appropriate interfaces. Also, to use with the for-each loop, you'll be wanting the Iterable and Iterator interfaces, rather than Enumeration. Have a look at the source of the existing Java collections for clues as to how to go about implementing them.
Pages: [1]
  ignore  |  Print  
 
 
You cannot reply to this message, because it is very, very old.

 

Add your game by posting it in the WIP section,
or publish it in Showcase.

The first screenshot will be displayed as a thumbnail.

Longarmx (49 views)
2014-10-17 03:59:02

Norakomi (39 views)
2014-10-16 15:22:06

Norakomi (31 views)
2014-10-16 15:20:20

lcass (35 views)
2014-10-15 16:18:58

TehJavaDev (66 views)
2014-10-14 00:39:48

TehJavaDev (65 views)
2014-10-14 00:35:47

TehJavaDev (55 views)
2014-10-14 00:32:37

BurntPizza (72 views)
2014-10-11 23:24:42

BurntPizza (43 views)
2014-10-11 23:10:45

BurntPizza (84 views)
2014-10-11 22:30:10
Understanding relations between setOrigin, setScale and setPosition in libGdx
by mbabuskov
2014-10-09 22:35:00

Definite guide to supporting multiple device resolutions on Android (2014)
by mbabuskov
2014-10-02 22:36:02

List of Learning Resources
by Longor1996
2014-08-16 10:40:00

List of Learning Resources
by SilverTiger
2014-08-05 19:33:27

Resources for WIP games
by CogWheelz
2014-08-01 16:20:17

Resources for WIP games
by CogWheelz
2014-08-01 16:19:50

List of Learning Resources
by SilverTiger
2014-07-31 16:29:50

List of Learning Resources
by SilverTiger
2014-07-31 16:26:06
java-gaming.org is not responsible for the content posted by its members, including references to external websites, and other references that may or may not have a relation with our primarily gaming and game production oriented community. inquiries and complaints can be sent via email to the info‑account of the company managing the website of java‑gaming.org
Powered by MySQL Powered by PHP Powered by SMF 1.1.18 | SMF © 2013, Simple Machines | Managed by Enhanced Four Valid XHTML 1.0! Valid CSS!