Programming Forums > Application Development > Java

glevine · Jul 25th, 2005, 11:21 AM

I wrote an application under Windows XP. The person who needs to use the app runs Mac OS X. I packaged the app in an executable jar and it runs just fine on my pc. Having never used Macs much in my lifetime, and never actually developed for one, I am confused as to why the app won't run on the mac. I am figuring it is because he doesn't have the jdk installed, but don't know if that is the correct reason. If someone knows why this may be happening please respond. Also, I know that there are a few different types of jars, so maybe someone could point out a jar type that can run an app and doesn't require that the jdk be installed? Thanks.

Broax · Jul 25th, 2005, 11:29 AM

As far as I know (and what I know doesn't go very far) it's not a problem of the sdk but of the runtime enviorment. sdk is only for software development while the runtime enviorment is the java engine that will allow for java software to be ran.

Anyways, tell your friend to try to download the runtime enviorment from www.java.com

I hope this helps!

cheers!

skuinders · Jul 25th, 2005, 11:30 AM

You need to have the Java runtime environment installed to execute any java code.

glevine · Jul 25th, 2005, 11:35 AM

JRE 1.4.2 is installed. I checked that first. Then I came across a page by Borland stating the differences between the jar types. It says for an Executable Jar:

"Note: The JDK is not bundled with the JAR file. An appropriate JDK must be installed on the user's computer an on the users path for the executable to run."

http://info.borland.com/techpubs/jbu...ployment1.html

That's what got the idea that I need a different type of executable jar (like application jar).

skuinders · Jul 25th, 2005, 11:52 AM

http://java.sun.com/docs/books/tutorial/jar/

JeffHeaton · Jul 30th, 2005, 4:15 PM

That is controlled by the operating system. The OS shell needs to execute Java for filetypes of JAR. Even if the JAR is setup to execute.

Jeff
http://www.heatonresearch.com/

EdSalamander · Aug 9th, 2005, 8:55 PM

What version of the SDK did you use to compile the program? If you used 1.5, then your friend will need to update to the 1.5 Runtime Enviornment to run it (even if you didn't use any of the 1.5 features).

Jul 25th, 2005, 11:21 AM	#1
glevine Newbie Join Date: Jun 2005 Posts: 22 Rep Power: 0	executable jar I wrote an application under Windows XP. The person who needs to use the app runs Mac OS X. I packaged the app in an executable jar and it runs just fine on my pc. Having never used Macs much in my lifetime, and never actually developed for one, I am confused as to why the app won't run on the mac. I am figuring it is because he doesn't have the jdk installed, but don't know if that is the correct reason. If someone knows why this may be happening please respond. Also, I know that there are a few different types of jars, so maybe someone could point out a jar type that can run an app and doesn't require that the jdk be installed? Thanks.

Jul 25th, 2005, 11:29 AM	#2
Broax Hobbyist Programmer Join Date: Jan 2005 Location: Porto, Portugal Posts: 142 Rep Power: 4	As far as I know (and what I know doesn't go very far) it's not a problem of the sdk but of the runtime enviorment. sdk is only for software development while the runtime enviorment is the java engine that will allow for java software to be ran. Anyways, tell your friend to try to download the runtime enviorment from www.java.com I hope this helps! cheers! __________________ PORTUGALPORTUGA PORTUGALPORTUGA PORTUGALPORTUGA PORTUGALPORTUGA PORTUGALPORTUGA

Jul 25th, 2005, 11:30 AM	#3
skuinders Hobbyist Programmer Join Date: Jun 2005 Location: MA, US Posts: 204 Rep Power: 4	You need to have the Java runtime environment installed to execute any java code. __________________ "A stupid man's report of what a clever man says can never be accurate, because he unconciously translates what he hears into something he can understand." - B. Russell http://web.bryant.edu/~srk2

Jul 25th, 2005, 11:52 AM	#5
skuinders Hobbyist Programmer Join Date: Jun 2005 Location: MA, US Posts: 204 Rep Power: 4	http://java.sun.com/docs/books/tutorial/jar/ __________________ "A stupid man's report of what a clever man says can never be accurate, because he unconciously translates what he hears into something he can understand." - B. Russell http://web.bryant.edu/~srk2

Aug 9th, 2005, 8:55 PM	#7
EdSalamander Programmer Join Date: Dec 2004 Location: Tucson, AZ, USA Posts: 80 Rep Power: 4	What version of the SDK did you use to compile the program? If you used 1.5, then your friend will need to update to the 1.5 Runtime Enviornment to run it (even if you didn't use any of the 1.5 features). __________________ I can pick my friends. And I can pick my nose. So, why can't I pick my friend's nose?

Jul 25th, 2005, 11:35 AM	#4
glevine Newbie Join Date: Jun 2005 Posts: 22 Rep Power: 0	JRE 1.4.2 is installed. I checked that first. Then I came across a page by Borland stating the differences between the jar types. It says for an Executable Jar: "Note: The JDK is not bundled with the JAR file. An appropriate JDK must be installed on the user's computer an on the users path for the executable to run." http://info.borland.com/techpubs/jbu...ployment1.html That's what got the idea that I need a different type of executable jar (like application jar).

Jul 30th, 2005, 4:15 PM	#6
JeffHeaton Newbie Join Date: Jul 2005 Posts: 2 Rep Power: 0	That is controlled by the operating system. The OS shell needs to execute Java for filetypes of JAR. Even if the JAR is setup to execute. Jeff http://www.heatonresearch.com/

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