Images in .jar file

boyracer87 · 13-12-2006 5:29pm #1

Hey guys,

Just wondering how to put images into a jar file. i keep getting an exception when i go to run it..

cheers

Evil Phil · 13-12-2006 5:47pm

What's the exception?

aidan_walsh · 13-12-2006 5:49pm

Try using

this.getClass().getClassLoader().getResourceAsStream( "x/y.z" );

to load the images. If that doesn't work try posting some code and the exception (nearly always a good idea, btw - programmers are smart, not psychic).

Evil Phil · 13-12-2006 5:53pm

Heh. Smart, not psychic

I've added that to the 'How to ask a question' sticky.

aidan_walsh · 13-12-2006 6:17pm

/curtsey

boyracer87 · 13-12-2006 7:11pm

Heres the exception:

Exception in thread "main" java.lang.NullPointerException
at javax.swing.ImageIcon.<init>(Unknown Source)
at RaysZork.<init>(RaysZork.java:53)
at RaysZork.main(RaysZork.java:69)

I this right?:

ImageIcon roompic1 = new ImageIcon(this.getClass().getClassLoader().getResourceAsStream("rooms1.gif"));

Vuk · 13-12-2006 7:23pm

ImageIcon roompic1 = new ImageIcon(this.getClass().getResource("rooms1.gif"));

This should work!
Good luck with ZorkUL(unless I'm wrong!)

aidan_walsh · 13-12-2006 7:27pm

The resource is returned relative to the root of the JAR, so if there are any folders in the JAR you have to specify them all.

EDIT: Vuk's is more correct, sorry. The method I gave you returned an ImputStream.

boyracer87 · 13-12-2006 8:05pm

No...still doesent work..im getting the same exception when i try to run it...

Vuk wrote:

Good luck with ZorkUL(unless I'm wrong!)

Howd you know that :eek:

Vuk · 13-12-2006 8:22pm

boyracer87 wrote:

No...still doesent work..im getting the same exception when i try to run it...

Howd you know that :eek:

Hmmm as aidan was saying, have you got the images in a sub directory perhaps?
Or maybe the images themselves are not being added to the jar file?
I'm assuming that you have succesfully loaded the images previously with an IDE or command line build!

Oh and as for how I know, I'm sitting here, working away on the same project, with nothing but the hum of my computer, 20 Benson and a load of coffee for company...

boyracer87 · 13-12-2006 8:35pm

Vuk wrote:

I'm assuming that you have succesfully loaded the images previously with an IDE or command line build!

NO.....:o

.Howd ya do that??

Vuk wrote:

Oh and as for how I know, I'm sitting here, working away on the same project, with nothing but the hum of my computer, 20 Benson and a load of coffee for company...

Who are ya????

Vuk · 13-12-2006 9:30pm

@boyracer87, check your PMs!
We can try to work it out from there

boyracer87 · 13-12-2006 11:31pm

Vuk...check PM's

Images in .jar file

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