This week's book giveaways are in the Java EE and JavaScript forums.
We're giving away four copies each of The Java EE 7 Tutorial Volume 1 or Volume 2(winners choice) and jQuery UI in Action and have the authors on-line!
See this thread and this one for details.
The moose likes Beginning Java and the fly likes growable array of primitive type Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


Win a copy of The Java EE 7 Tutorial Volume 1 or Volume 2 this week in the Java EE forum
or jQuery UI in Action in the JavaScript forum!
JavaRanch » Java Forums » Java » Beginning Java
Bookmark "growable array of primitive type" Watch "growable array of primitive type" New topic
Author

growable array of primitive type

Pin Ting
Greenhorn

Joined: May 28, 2003
Posts: 22
Dear all ranchers,
The Vector and ArrayList accept object only, and I found it not convenient to use. So I wonder is there any easy way to do this in Java:
GrowableArray ga = new GrowableArray();
ga.pushBack(4);
ga.pushBack(38);
int tmp = ga.popBack();
Thanks.


Never do things the hard way if you don't have a good reason.
Dirk Schreckmann
Sheriff

Joined: Dec 10, 2001
Posts: 7023
The J2SE Collections accept only Objects, as you've pointed out. I have noticed third party, open source, free Collections that work with primitives. You might want to try a quick search on Google. You could always write your own primitive Collection without too much work.
In the future, with Java 1.5, the compiler will autobox and unbox primitives as necessary. So, you'll be able to say myArrayList.add(13), and the compiler will step in and rewrite the code as myArrayList.add(new Integer(13)), saving us programmers some steps.
[ July 11, 2003: Message edited by: Dirk Schreckmann ]

[How To Ask Good Questions] [JavaRanch FAQ Wiki] [JavaRanch Radio]
Pin Ting
Greenhorn

Joined: May 28, 2003
Posts: 22
That's a good news. I'm looking forward to coding with JSDK 1.5!
 
Don't get me started about those stupid light bulbs.
 
subject: growable array of primitive type