[wannagotopopeyes]

What am I doing wrong?

First off, Im on a 2G on Firmware 2.1, and have all the major java packages installed from Cydia. (iPhone/Java, Jikes, etc)

I followed this guide...

Tutorial: install Java on the IPhone | Java 4 iPhone

to get everything up and running, then this guide

Tutorial: compile and run Java application on the IPhone | Java 4 iPhone

To (attempt to) find the .java file, compile it with jikes, and run it through the mobile terminal.

I followed the instructions on the site 100%, and I'm not an idiot, So idk why my jikes command (jikes TestApp.java -cp /usr/lib/rt.jar) does not compile the program.

Maybe I'm missing some major detail or something, but I can't see it. Any help would be greatly appreciated.

Here are some screenshots from the tutorial: (I can't even get these same error messages!)

http://java4iphone.com/wp-content/up...06/step3_3.jpg
http://java4iphone.com/wp-content/up...06/step3_4.jpg

Someone tell me the obvious mistake I'm missing

Unless its just something I don't know about, like the iPhone/Java package not being able to run correctly on the 2.1 firmware, then that would upset me. Help?!

[java4iphone]

Thanks for your interest in Java for iPhone. What error do you get?

I tried to do the following to run sample application using iPhone 3G with 2.1 firmware:

I created a small application Java4iPhone.java:
public class Java4iPhone {
public static void main(String[] args) {
System.out.println("Java 4 iPhone rulez");
}
}

Uploaded it into /private/ver/tmp folder. Writing to this folder is avaliable for user.

After that I entered
> jikes Java4iPhone.java
and
> java Java4iPhone
and got "Java 4 iPhone rulez".

jikes Java4iPhone.java -cp /usr/lib/rt.jar also works.

You can also use other folder, like /usr. But write access privileges are avaliable to root user only, so use
su root
to login as root user (default password is alpine).

I'll create a new tutorial for 2.x firmwares with screenshots and etc, but things didn't change much since 1.1.4.

Thanks.
Java4iPhone admin

[neufuture]

So I am trying to compile and application, but it's having some trouble, so wondering if you had any ideas?

I'm getting this message:

*** Semantic Error: You need to modify your classpath, sourcepath, bootclasspath, and/or extdir setup. Jikes could not find package "processing.core"

here's what I'm trying to compile:
http://neufuture.com/upload/Testr.zip

Also note to java4iphone: the English version of your site doesn't seem to function

Edit: so basically I want to compile using the "processing" package as well. Is that possible?

[uvbeenbit]

Did you ever get this to work?

I am on 2.2.1 and may try some java, but I am concerned with compatibility and whether or not it will work.

update:

I had to install jikes separate from the java package. Also, it had been a while since I had written any java. I had forgotten the class and the name have to match or an error occurs.

I did get java to work on 2.2.1