473,320 Members | 2,112 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,320 software developers and data experts.

jar question

Hello,

I'm trying to write an applet that shows the exif information of a jpeg
image. For displaying this information I'm going to use the classes
found on this website http://www.drewnoakes.com/code/exif/.

But, they are in an jar file. Is there a way to import this jar file
into my applet so I can use the classes and methods for getting this
information?

Thanks,

Christof Laeremans

Jul 17 '05 #1
6 2710
On Mon, 01 Sep 2003 20:40:15 +0200, Christof Laeremans
<christof_nospam_laeremans@yahoo_againnospam_co.uk > two-finger typed:
Hello,

I'm trying to write an applet that shows the exif information of a jpeg
image. For displaying this information I'm going to use the classes
found on this website http://www.drewnoakes.com/code/exif/.

But, they are in an jar file. Is there a way to import this jar file
into my applet so I can use the classes and methods for getting this
information?
Although, officially you can add more than one JAR file into the ARCHIVE
tag of the APPLET tag (or the ARCHIVE parameter of the OBJECT tag), you
could also:
1) unJAR the classes and JAR your classes together with the Exim classes
for a single JAR file.
2) only reference the Exim JAR file with ARCHIVE, and put your own classes
unarchived into the site.

Thanks,

Christof Laeremans


Cheers.
Jul 17 '05 #2
Neomorph wrote:
On Mon, 01 Sep 2003 20:40:15 +0200, Christof Laeremans
<christof_nospam_laeremans@yahoo_againnospam_co.uk > two-finger typed:

Hello,

I'm trying to write an applet that shows the exif information of a jpeg
image. For displaying this information I'm going to use the classes
found on this website http://www.drewnoakes.com/code/exif/.

But, they are in an jar file. Is there a way to import this jar file
into my applet so I can use the classes and methods for getting this
information?

Although, officially you can add more than one JAR file into the ARCHIVE
tag of the APPLET tag (or the ARCHIVE parameter of the OBJECT tag), you
could also:
1) unJAR the classes and JAR your classes together with the Exim classes
for a single JAR file.
2) only reference the Exim JAR file with ARCHIVE, and put your own classes
unarchived into the site.

Thanks,

Christof Laeremans

Cheers.


Hello,

So, I've created my java applet and imported it in an HTML file with the
applet tag

<applet
archive = "photoexif/metadata-extractor-2.1.jar"
code = "photoexif/Exif.class"
name = "TestApplet"
width = "400"
height = "20"
hspace = "0"
vspace = "0"
align = "middle"

</applet>

But, the only thing I see is a gray bar with no text. When I start the
applet with JBuilder I can see the exif off the selected photo.

What is wrong ?

Regards,

Christof Laeremans
Jul 17 '05 #3
(See below)

On Wed, 03 Sep 2003 08:44:09 +0200, Christof Laeremans
<christoflaeremans_nospam_@yahoo_nospam.co.uk> two-finger typed:
Neomorph wrote:
On Mon, 01 Sep 2003 20:40:15 +0200, Christof Laeremans
<christof_nospam_laeremans@yahoo_againnospam_co.uk > two-finger typed:
But, they are in an jar file. Is there a way to import this jar file
into my applet so I can use the classes and methods for getting this
information?
Although, officially you can add more than one JAR file into the ARCHIVE
tag of the APPLET tag (or the ARCHIVE parameter of the OBJECT tag), you
could also:
1) unJAR the classes and JAR your classes together with the Exim classes
for a single JAR file.
2) only reference the Exim JAR file with ARCHIVE, and put your own classes
unarchived into the site.

So, I've created my java applet and imported it in an HTML file with the
applet tag

<applet
archive = "photoexif/metadata-extractor-2.1.jar"
code = "photoexif/Exif.class"


You can't add a path to the class in the CODE tag, you need to set the
codebase, instead:

codebase="photoexif"
archive = "metadata-extractor-2.1.jar" <!-- from codebsae -->
code = "Exif.class" <!-- from codebsae -->
name = "TestApplet"
width = "400"
height = "20"
hspace = "0"
vspace = "0"
align = "middle"

</applet>

But, the only thing I see is a gray bar with no text. When I start the
applet with JBuilder I can see the exif off the selected photo.


The tags cannot be used that easily, they have very specific functions of
their own.

I'm quite interested in Exif - isn't it an extension to JPG that adds
information about how the image was taken ?
Cheers.
Jul 17 '05 #4
Neomorph wrote:
(See below)

On Wed, 03 Sep 2003 08:44:09 +0200, Christof Laeremans
<christoflaeremans_nospam_@yahoo_nospam.co.uk> two-finger typed:
Neomorph wrote:
On Mon, 01 Sep 2003 20:40:15 +0200, Christof Laeremans
<christof_nospam_laeremans@yahoo_againnospam_co .uk> two-finger typed:

But, they are in an jar file. Is there a way to import this jar file
into my applet so I can use the classes and methods for getting this
information?

Although, officially you can add more than one JAR file into the ARCHIVE
tag of the APPLET tag (or the ARCHIVE parameter of the OBJECT tag), you
could also:
1) unJAR the classes and JAR your classes together with the Exim classes
for a single JAR file.
2) only reference the Exim JAR file with ARCHIVE, and put your own classes
unarchived into the site.


So, I've created my java applet and imported it in an HTML file with the
applet tag

<applet
archive = "photoexif/metadata-extractor-2.1.jar"
code = "photoexif/Exif.class"

You can't add a path to the class in the CODE tag, you need to set the
codebase, instead:

codebase="photoexif"
archive = "metadata-extractor-2.1.jar" <!-- from codebsae -->
code = "Exif.class" <!-- from codebsae -->
name = "TestApplet"
width = "400"
height = "20"
hspace = "0"
vspace = "0"
align = "middle"

</applet>

But, the only thing I see is a gray bar with no text. When I start the
applet with JBuilder I can see the exif off the selected photo.

The tags cannot be used that easily, they have very specific functions of
their own.

I'm quite interested in Exif - isn't it an extension to JPG that adds
information about how the image was taken ?
Cheers.


Hello,

I'm going to try that. The exif is indeed an extension for JPG. the
applet works great in my JBuilder IDE (and hopefully now in my bowser ;) )

Regards,

Christof Laeremans

Jul 17 '05 #5
seb
Christof Laeremans <christof_nospam_laeremans@yahoo_againnospam_co.uk > wrote in message news:<bj**********@reader08.wxs.nl>...
Hello,

I'm trying to write an applet that shows the exif information of a jpeg
image. For displaying this information I'm going to use the classes
found on this website http://www.drewnoakes.com/code/exif/.

But, they are in an jar file. Is there a way to import this jar file
into my applet so I can use the classes and methods for getting this
information?

Thanks,

Christof Laeremans

a jar is the same thing that a group of .class files. You can also
rename it with the zip extention an extract .class files.
Jul 17 '05 #6
seb wrote:
Christof Laeremans <christof_nospam_laeremans@yahoo_againnospam_co.uk > wrote in message news:<bj**********@reader08.wxs.nl>...
Hello,

I'm trying to write an applet that shows the exif information of a jpeg
image. For displaying this information I'm going to use the classes
found on this website http://www.drewnoakes.com/code/exif/.

But, they are in an jar file. Is there a way to import this jar file
into my applet so I can use the classes and methods for getting this
information?

Thanks,

Christof Laeremans


a jar is the same thing that a group of .class files. You can also
rename it with the zip extention an extract .class files.


A better way to do this is to include the jar in your classpath. Timply
type:

java -cp c:\path\to\my\jar\file\thejarfile.jar MyMainClass

and your application will include the files in the jarfile when it
executes. There is a similar syntax for javac, and you can include
second party jars this way for applets and web start applications too.

I would definately not recommend unzipping the jar and using the .class
files directly.

Lots more on jars, including use of the manifest file, can be found at
Sun's tutorial site:

http://java.sun.com/j2se/1.4.2/docs/guide/jar/
Mark McKay

Jul 17 '05 #7

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

1
by: Mohammed Mazid | last post by:
Can anyone please help me on how to move to the next and previous question? Here is a snippet of my code: Private Sub cmdNext_Click() End Sub Private Sub cmdPrevious_Click() showrecord
3
by: Stevey | last post by:
I have the following XML file... <?xml version="1.0"?> <animals> <animal> <name>Tiger</name> <questions> <question index="0">true</question> <question index="1">true</question> </questions>
7
by: nospam | last post by:
Ok, 3rd or is it the 4th time I have asked this question on Partial Types, so, since it seems to me that Partial Types is still in the design or development stages at Microsoft, I am going to ask...
3
by: Ekqvist Marko | last post by:
Hi, I have one Access database table including questions and answers. Now I need to give answer id automatically to questionID column. But I don't know how it is best (fastest) to do? table...
10
by: glenn | last post by:
I am use to programming in php and the way session and post vars are past from fields on one page through to the post page automatically where I can get to their values easily to write to a...
10
by: Rider | last post by:
Hi, simple(?) question about asp.net configuration.. I've installed ASP.NET 2.0 QuickStart Sample successfully. But, When I'm first start application the follow message shown. ========= Server...
53
by: Jeff | last post by:
In the function below, can size ever be 0 (zero)? char *clc_strdup(const char * CLC_RESTRICT s) { size_t size; char *p; clc_assert_not_null(clc_strdup, s); size = strlen(s) + 1;
56
by: spibou | last post by:
In the statement "a *= expression" is expression assumed to be parenthesized ? For example if I write "a *= b+c" is this the same as "a = a * (b+c)" or "a = a * b+c" ?
2
by: Allan Ebdrup | last post by:
Hi, I'm trying to render a Matrix question in my ASP.Net 2.0 page, A matrix question is a question where you have several options that can all be rated according to several possible ratings (from...
3
by: Zhang Weiwu | last post by:
Hello! I wrote this: ..required-question p:after { content: "*"; } Corresponding HTML: <div class="required-question"><p>Question Text</p><input /></div> <div...
0
by: DolphinDB | last post by:
Tired of spending countless mintues downsampling your data? Look no further! In this article, you’ll learn how to efficiently downsample 6.48 billion high-frequency records to 61 million...
0
by: ryjfgjl | last post by:
ExcelToDatabase: batch import excel into database automatically...
0
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
1
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
0
by: Vimpel783 | last post by:
Hello! Guys, I found this code on the Internet, but I need to modify it a little. It works well, the problem is this: Data is sent from only one cell, in this case B5, but it is necessary that data...
0
by: CloudSolutions | last post by:
Introduction: For many beginners and individual users, requiring a credit card and email registration may pose a barrier when starting to use cloud servers. However, some cloud server providers now...
0
by: Defcon1945 | last post by:
I'm trying to learn Python using Pycharm but import shutil doesn't work
0
by: Shællîpôpï 09 | last post by:
If u are using a keypad phone, how do u turn on JavaScript, to access features like WhatsApp, Facebook, Instagram....
0
by: af34tf | last post by:
Hi Guys, I have a domain whose name is BytesLimited.com, and I want to sell it. Does anyone know about platforms that allow me to list my domain in auction for free. Thank you

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.