Adding .jar to Eclipse 2018-09 project - eclipse

I'd like to know how to add JAR file to Eclipse 2018-09 project. I've already copied it to lib project's folder. I've tried right clicking on jar file and build path but no actions are displayed.
Thanks in advance

If you are developing a Java Project you want to right click on the project go to properties, click on Java Build Path in the preference tree then on that tab click libraries and on there click add jar and then select the jar you want to add to your classpath.
If you are building a eclipse plugin, open the MANIFEST.MF file go to the runtime tab in the editor and on the bottom right there is a classpath selection, click add and point to the jar you want to add to your classpath.

Related

How to add jar files of GWT in Eclipse

How to add jar files of GWT in Eclipse luna?
Its ping me frequently for keeping update of plugins? what's the future scope of GWT?
Please guide me for the same.
Credit to #cfulton. Here I got success.
Create lib folder at same level as src folder.
Copy jar into lib folder.
Open up eclipse, or if you already have open refresh by going File->Refresh.
Ensure you can now see your jar file under Project->Lib.
Add library to build.xml file (create pathelement entry in <path id="extras"> section <pathelement location="lib/gwt-bootstrap.jar"/>
Add library to Build Path.
Right Click on project in Package Explorer, Build Path->Configure Build Path.
Click “Add JARs” in the “Libraries” section.
Navigate to the lib folder of your project and select the jar and click okay.
Click okay on the configure build path dialog.
Add <inherits> tag.
In file Component .gwt.xml add the following line (specific to what you are including). <inherits name="com.github.gwtbootstrap.Bootstrap"/>

Netbeans newbie-- How to enable viewing info from a javadoc JAR file

I have some JAR files which I have to add to a Java project- for each of those JARs I also have separate JARs that contain Javadoc for each of the jars-- now I want to be able to view information from the Javadocs in Netbeans.
How do I do this? I am using Netbeans IDE 7.3 on Windows 8 x-64.
when you download some JAR in zip, you will find usually 3 files in there :
example.jar
example-sources.jar
example-javadoc.jar
In your project import example.jar as libarary. After that go to your Project (right click ) then Properties >> Libraries >> Compile then select your jar file and click EDIT, in that form select javadoc and sources file :)
Here is image for easy navigation (itextpdf lib is in thi example)
EDIT
There is even faster way ;) Right click on JAR in Libraries section of your Project and select Edit from menu. Its the same form as in example above.
Go to: Tools>>Java Platforms>>Javadoc tab
There you can set what Javadoc you want to have.

Eclipse - Adding a Jar File to a existing Project

I am running Eclipse 3.7. I am currently working on a Plug-In Project for a Application called Team Center. I was recently made aware of a jar file of SWT Widgets named Opal. So I am trying to figure out how to add the Jar File to my existing project. I have tried many different ways to do this. Nothing has worked so far.
Here are some of the things I have tried.
Made a lib directory in my current project copied the jar file
Build Path Configure -> Libraries -> Added the Jar
Runtime tab -> Add -> selected the lib/jar file -> update build path
Saved
My project still compiles, but at runtime it fails and I get can't load proxied handler errors
I have tried to create a plugin project just for the Jar File, then add the opal plugin to required Plug-ins. If the Opal project is closed, that reflects with the Opal plugin in my project.
Here is the way my current project works. It is a plug-in project and when I finish or change code.
Build Project
Export
Deployable plug-ins and fragments
Select my project plug-in
Finish
Then I copy the project.jar to the TeamCenter Application plug-ins directory
I am assuming that somehow I have to include the opal.jar in the project.jar. But right now I am at a total lost on how to do it.
In Eclipse Plugin Project click on your MANIFEST.MF file and go to the runtime tab. There should be a section "Classpath". Try to add your lib there.
UPDATE
I've tried it and it has worked for me. I've executed following steps:
create new Plug-In project
create new lib folder in it
copy opal lib to the folder
open the MANIFEST.MF, go to the Runtime tab and add the lib to the Classpath section
check whether the lib folder is recognized of the build process (Build tab and lib folder should be checked)
Create new Run Configuration (Run -> Run Configuration... -> double click on OSGi Framework)
on Bundles tab check the new made project (Workspace section) and uncheck Target Platform for now
mark the new project and click on the button Add Required Bundles on the right side
now some needed bundles to run your project should be checked in the Target Platform section
click Apply, then Run and your OSGi env will be started
check build.properties in your plugin. check lib folder should be included there.
open plugin.xml or MANIFEST.MF in editor, you see build Tab. In the binary build, make sure your lib folder is checked.

Eclipse - How to give dependency between projects?

I have two java projects in eclipse. Second one is using first one's jar. When I try to navigate to first one's class from second one, it opens .class of that file. But I want to open the first one project file. Please help.
Thanks in advance.
If you want to link your second project with your first project, don't add the first project in form of a JAR file to the second.
Instead open the project properties of the second project and select "Java Build Path". On the right side on the "Projects" tab you can add your first project as "required project on the build path".
The class files of project 1 are now added to the class path of project 2. And if you click on a class name you directly get to the source code.
Ideally, the JAR of the first project would appear under the "Referenced Libraries" of the second project.
Right-click on that JAR, and choose Properties -> Java Source Attachment.
Provide a variable that links to the source files of this JAR.
Alternatively, install a decompiler plugin (see jd-eclipse) which will decompile class files when you navigate them in Eclipse, so that you can see the source.
Make one project in Eclipse depend on another so that the dependencies are available in the indexer
Tested on Eclipse IDE for C/C++ Developers 2022-09 (4.25.0) on Linux Ubuntu 18.04.
For C++, right-click on the project which depends on another project. Go to "Properties" --> Project References --> check the box next to the project whose files and resources you'd like to be available in the project you are editing --> click "Apply and Close".
The indexed resources in the project next to the box you just checked (glib in the screenshot below) are now available to the project whose properties you just edited! This means if you Ctrl + Click a variable which is defined in the project you are editing, your indexer will now jump to its definition even if it lies in the referenced project (glib in this case)!
Screenshot:
Done!
Old and wrong answer (but may be helpful for adding includes to your project)
For C++, right-click on the project which depends on another project. Go to "Properties" --> C/C++ Include Paths and Symbols --> click "Add Include Path from Workspace..." --> choose the project from your workspace which it depends on, and drill down into the folder of interest --> click "OK". Click "Apply and Close".
You've now made your project whose properties you just edited depend on the other project in such a way that the dependent project dir you just added will now be indexed!

Import Libraries in Eclipse?

I just recently downloaded the dom4j library, but for the life of me I have no idea how to access it. I dropped it in the plug-ins folder and rebooted Eclipse, without success. For some reason finding a straight answer for this is more difficult that I thought it would be.
No, don't do it that way.
From your Eclipse workspace, right click your project on the left pane -> Properties -> Java Build Path -> Add Jars -> add your jars here.
Tadaa!! :)
Extract the jar, and put it somewhere in your Java project (usually under a "lib" subdirectory).
Right click the project, open its preferences, go for Java build path, and then the Libraries tab. You can add the library there with "add a jar".
If your jar is not open source, you may want to store it elsewhere and connect to it as an external jar.
For the Android library projects, I do it as in the attached screenshot:
Right click the project, select Properties->Android and in the library section click Add. From here you can select the available libraries.
If you are importing a jar file, then importing them as jar or external jar, as other posters posted would work. I prefer to copy/paste jar file in the libs folder (create one if it doesn't exist) and then import as jar.
If you want to get this library into your library and use it, follow these steps:
You can create a new folder within Eclipse by right-clicking on your project, and selecting New Folder. The library folder is traditionally called lib.
Drag and drop your jar folder into the new lib folder, and when prompted select Copy Files.
Selecting the Project tab at the top of the screen, and click Properties.
Select Java Build Path followed by the Libraries tab.
Click the Add JARs… button and select your JAR file from within the lib folder.
Your JAR file will now appear in both the lib and Referenced Libraries folders. You can explore the JAR's resources by clicking Referenced Libraries.