I have no experience with package structure. I added two external libraries (from Joda) to my eclipse project. The code makes use of the libraries with no problems. However, when I export the Archived File and open it on another computer, the libraries are no where to be found. Much sadness.The error looks like a little red exclamation point next to my project in the package explorer. Checkboxes next to the libraries have been checked/applied.
Right click on your project
Navigate to build paths -> configure build path
In order and export tab check whether the library is in the list or not
If it is not selected, tick the Checkbox and click apply
Someone told me that I need to export it as a executable jar.
I'm new to Eclipse and Swing. I wanted to use some Data Binding for my program, and saw here [http://help.eclipse.org/juno/index.jsptopic=%2Forg.eclipse.wb.swing.doc.user%2Fhtml%2Ffeatures%2Fswing%2Fdata_binding%2Findex.html][1]
In order to use Swing Data Binding (JSR 295), you must first add the Swing Data Binding jar (e.g., beansbinding-1.2.1.jar) to your classpath
How do I do that? I couldn't google it out...
One thing you can do is download the jar file itself from http://mvnrepository.com/artifact/net.java.dev.beansbinding/beansbinding/1.2.1
Then, right-click on your project in the Package Explorer and select Build Path -> Configure Build Path... Select the Libraries tab and then click Add External JARs... Navigate to the location you downloaded the jar file to and select it; now it's in your build path.
Note: If you already had a class open in the WindowBuilder when you did this, you'll have to close it and then reopen it in order to see the Bindings tab.
Hope that helps!
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Possible Duplicate:
Adding a library/JAR to an Eclipse Android project
I found an interesting project to me, Wanted to use his library but I can not add to my library, as in the example
I do it in eclipse
I can not add. Jar in my library
Right click your project, select Build Path -> Configure Build Path.... On the Libraries tab you can add the library.
If the JAR is contained in a project folder select Add JARs.... If you want to add it from the file system select Add External JARs.
Right click on project Build path is displayed, take mouse over build path other option is displayed then click on configure build path
A new windows open check libraries is displayed at top navigation
Click on the libraries
Click on add External jar button
Browser your jar file
Add the file from the system.
As Piotr said, I didn't understand the problem. However, here is how you can add a jar file in eclipse.
Right-click on your project Build path -> Configure Build Path...
Select Library tab There you can see on the right-hand side, Add
JARs... or Add External JARs...
Select what do you want.
Copy the jars and paste them into your lib directory for web applications
lib location :
YourProject
--WebContent
---WEB-INF
---lib
Presently I'm working with JavaFX. Whenever I hover over a method of JavaFX its gives me the following error:
'Note: This element neither has attached source nor attached Javadoc and hence no Javadoc could be found'
How should I resolve this? How can I attach the javadoc or source so that I could see the description of the methods?
Download jar file containing the JavaDocs.
Open the Build Path page of the project (right click, properties, Java build path).
Open the Libraries tab.
Expand the node of the library in question (JavaFX).
Select JavaDoc location and click edit.
Enter the location to the file which contains the Javadoc (the one you just downloaded).
You can configure the Javadocs with downloading jar, basically javadocs will be referred directly from internet.
Complete steps:
Open the Build Path page of the project (right click, properties,
Java build path).
Open the Libraries tab.
Expand the node of the library in question (JavaFX).
Select JavaDoc location and click edit.
Enter the location to the file which contains the Javadoc.
Specifically for the javaFX javadoc enter http://docs.oracle.com/javafx/2.0/api/
for offline javadocs, you can download from : http://www.oracle.com/technetwork/java/javase/documentation/java-se-7-doc-download-435117.html
After clicking Accept License Agreement you can download javafx-2_2_0-apidocs.zip
Neither Project/Properties/Javadoc Location nor Project/Properties/Java Build Path/Libraries had not helped me until I picked and moved up in "Order and Export" tab of "Java Build Path" "Android Dependencies" and added-in-library.jar. I hope it will be useful.
Alternatively you can also,
1) Navigate to that method by Ctrl+Click on the method. The new tab/window will opened with text "Source not found" and button "Attach Source.." in it
2) Click the button "Attach Source.."
3) New window pops up. Click the button "External Folder"
4) Locate the JavaFX javadoc folder. If you are on Windows with default installation settings, then the folder path is C:\Program Files\Oracle\JavaFX 2.0 SDK\docs
First, if you get the message
Note: This element neither has attached source nor attached Javadoc and hence no Javadoc could be found
Then it means that you've already included the external jar needed for your project.
The next step would be to associate the external jar with its javadoc url.
go to package explorer, expand your project folder, expand referenced libraries
right click the external jar that you want to associate its javadoc with
click properties -> javadoc location
copy and past the url for the javadoc that you googled online into the javadoc location path
click apply
And you're all set!
Above all answers are right but there is another method also which is very handy.
Pre-condition: Your project is Maven project Or converts it to Maven project.
RightclickOnProject > Configuration > Convert in to Maven Project
- Now follow the steps:
1. Select any jar for which you want to download sources or javadocs.
2. RightClick > Maven > Download javadoc or Download javasources
I couldn't get the "Attach source..." method to work either, and I tried many different ways. The Javadocs for JavaFX are installed in Program Files\Oracle\JavaFX 2.x SDK\docs. Another way to install the Javadocs is:
Right click on the project, select Properties
Select Libraries on the right side of the tab
At the right top side of the tab, you may see "Default JavaFX Platform" or something similar. Click on the Manage Platforms button. (You can also install this default platform from here if you haven't got this already).
In the Java Platform Manager tab which appears, select "Default JavaFX Platform" on the left side, and then click on the JavaFX tab on the right side of the window.
One of the entry fields is labeled "JavaFX Javadoc". Click the "Browse" button next to this field and browse to the installed docs file mentioned above.
Hope this helps some people who were as puzzled as I was.
In addition to the answer of #dhroove
(would have written a comment if I had 50 rep...)
The link has changed to:
http://docs.oracle.com/javafx/2/api/
At least my eclipse wasn't able to use the link from him.
It already in a different thread, just a simple eclipse setting will automatically download JavaDoc (but, you need to click the method for first time).
Where can I download the JavaDoc for JPA 2.0?
This trick worked for me in Eclipse Luna (4.4.2): For a jar file I am using (htsjdk), I packed the source in a separate jar file (named htsjdk-2.0.1-src.jar; I could do this since htsjdk is open source) and stored it in the lib-src folder of my project. In my own Java source I selected an element I was using from the jar and hit F3 (Open declaration). Eclipse opened the class file and showed the button "Attach source". I clicked the button and pointed to the src jar file I had just put into the lib-src folder. Now I get the Javadoc when hovering over anything I’m using from the jar.
If you are using maven just do:
mvn eclipse:eclipse -DdownloadSources=true -DdownloadJavadocs=true
You could specify the online Javadoc location for a particular JAR in Eclipse. This saved my day when I wasn't able to find any downloadable Javadocs for Kafka.
In the Package Explorer, right click on the intended JAR (under the project's Referenced Libraries or Maven Dependences or anything as such) and click on Properties.
Click on Javadoc Location.
In the Javadoc location path field under Javadoc URL, enter the URL of the online Javadocs, which most likely ends with /<version>/javadoc/. For example, Kafka 2.3.0's Javadocs are located at http://www.apache.org/dist/kafka/2.3.0/javadoc/ (you might want to change https to http in your URL, as it raised an invalid location warning after clicking on Validate... for me).
To attach the Java source code with Eclipse,
When you install the JDK, you must have selected the option to install the Java source files too. This will copy the src.zip file in the installation directory.
In Eclipse, go to Window -> Preferences -> Java -> Installed JREs -> Add and choose the JDK you have in your system.
Eclipse will now list the JARs found in the dialog box. There, select the rt.jar and choose Source Attachment. By default, this will be pointing to the correct src.zip. If not, choose the src.zip file which you have in your java installation directory.
java source attach in eclipse
Similarly, if you have the javadoc downloaded in your machine, you can configure that too in this dialog box.
How do I use simple in eclipse?
Do I add it to the JDK?
http://simple.sourceforge.net
The web site seem to have allot of info on using the methods but little on setting up the library.
I have used C and C++ to set up external libraries before but the Java set up confuses me.
Thank you!
In java world, in order to be able to use third party libraries, what you need to do is to add them to your project/application's CLASSPATH. In case of Simple, its library file is simple-xml-2.4.1.jar that is located inside a folder "jar" within the simple-xml-2.4.1.zip that you would download from Sourceforge.
Download and unzip the
simple-xml-2.4.1 Archive. (ZIP file).
Note that it has a Jar folder that
contains simple-xml-2.4.1.jar - that
is the library eclipse and other IDES
would use to set up the CLASSPATH
Goto your project in project
explorer.
Right-click on the project name and
select "Properties". Alternately, you
can click on the project name and
type "Alt+Enter". A window will
pop-up.
In the window, select "Java Build
Path". You will see several tabs,
including "Source", "Projects" and
"Libraries".
To add simple-xml-2.4.1.jar to your
project, click on the "Libraries"
tab. From there, you can add either
internal jars or external jars. The
"Add External Jar" would be to add a
jar that's on your computer somewhere
. So choose that button, browse to
where simple-xml-2.4.1.jar is located
and make sure to add it to your build
path