How do I import a pre-existing Java project into Eclipse and get up and running

Question

Comment on Duplicate Reference  Why would this be marked duplicate when it was asked years prior to the question referenced as a duplicate   I also believe the question  detail  and response is much better than the referenced question   I ve been a C   programmer for quite a while but I m new to Java and new to Eclipse   I want to use the touch graph  Graph Layout  code to visualize some data I m working with   This code is organized like this     com   com touchgraph   com touchgraph graphlayout   com touchgraph graphlayout Edge java   com touchgraph graphlayout GLPanel java   com touchgraph graphlayout graphelements   com touchgraph graphlayout graphelements GESUtils java   com touchgraph graphlayout graphelements GraphEltSet java   com touchgraph graphlayout graphelements ImmutableGraphEltSet java   com touchgraph graphlayout graphelements Locality java   com touchgraph graphlayout graphelements TGForEachEdge java   com touchgraph graphlayout graphelements TGForEachNode java   com touchgraph graphlayout graphelements TGForEachNodePair java   com touchgraph graphlayout graphelements TGNodeQueue java   com touchgraph graphlayout graphelements VisibleLocality java   com touchgraph graphlayout GraphLayoutApplet java   com touchgraph graphlayout GraphListener java   com touchgraph graphlayout interaction   com touchgraph graphlayout interaction DragAddUI java   com touchgraph graphlayout interaction DragMultiselectUI java   com touchgraph graphlayout interaction DragNodeUI java   com touchgraph graphlayout interaction GLEditUI java   com touchgraph graphlayout interaction GLNavigateUI java   com touchgraph graphlayout interaction HVRotateDragUI java   com touchgraph graphlayout interaction HVScroll java   com touchgraph graphlayout interaction HyperScroll java   com touchgraph graphlayout interaction LocalityScroll java   com touchgraph graphlayout interaction RotateScroll java   com touchgraph graphlayout interaction TGAbstractClickUI java   com touchgraph graphlayout interaction TGAbstractDragUI java   com touchgraph graphlayout interaction TGAbstractMouseMotionUI java   com touchgraph graphlayout interaction TGAbstractMousePausedUI java   com touchgraph graphlayout interaction TGSelfDeactivatingUI java   com touchgraph graphlayout interaction TGUIManager java   com touchgraph graphlayout interaction TGUserInterface java   com touchgraph graphlayout interaction ZoomScroll java   com touchgraph graphlayout LocalityUtils java   com touchgraph graphlayout Node java   com touchgraph graphlayout TGAbstractLens java   com touchgraph graphlayout TGException java   com touchgraph graphlayout TGLayout java   com touchgraph graphlayout TGLensSet java   com touchgraph graphlayout TGPaintListener java   com touchgraph graphlayout TGPanel java   com touchgraph graphlayout TGPoint2D java   com touchgraph graphlayout TGScrollPane java   TG-APACHE-LICENSE txt   TGGL ReleaseNotes txt   TGGraphLayout html   TGGraphLayout jar   How do I add this project in Eclipse and get it compiling and running quickly

User · Answer

In the menu go to   - File - Import - as the filter select  Existing Projects into Workspace  - click next - browse to the project directory at  select root directory  - click on  finish

User · Answer

This assumes Eclipse and an appropriate JDK are installed on your system   Open Eclipse and create a new Workspace by specifying an empty directory  Make sure you re in the Java perspective by selecting Window -  Open Perspective      select Other    and then Java Right click anywhere in the Package Explorer pane and select New -  Java Project In the dialog that opens give the project a name and then click the option that says  Crate project from existing sources   In the text box below the option you selected in Step 4 point to the root directory where you checked out the project   This should be the directory that contains  com  Click Finish   For this particular project you don t need to do any additional setup for your classpath since it only depends on classes that are part of the Java SE API

User · Answer

I think you ll have to import the project via the file- import wizard    http   www coderanch com t 419556 vc Open-existing-project-Eclipse  It s not the last step  but it will start you on your way     I also feel your pain - there is really no excuse for making it so difficult to do a simple thing like opening an existing project   I truly hope that the Eclipse designers focus on making the IDE simpler to use  tho I applaud their efforts at trying different approaches - but please  Eclipse designers  if you are listening  never complicate something simple

User · Answer

Create a new Java project in Eclipse   This will create a src folder  to contain your source files   Also create a lib folder  the name isn t that important  but it follows standard conventions   Copy the   com   folders into the  src folder  you can just do this using the OS  no need to do any fancy importing or anything from the Eclipse GUI   Copy any dependencies  jar files that your project itself depends on  into  lib  note that this should NOT include the TGGL jar - thanks to commenter Mike Deck for pointing out my misinterpretation of the OPs post   Copy the other TGGL stuff into the root project folder  or some other folder dedicated to licenses that you need to distribute in your final app  Back in Eclipse  select the project you created in step 1  then hit the F5 key  this refreshes Eclipse s view of the folder tree with the actual contents  The content of the  src folder will get compiled automatically  with class files placed in the  bin file that Eclipse generated for you when you created the project    If you have dependencies  which you don t in your current project  but I ll include this here for completeness   the compile will fail initially because you are missing the dependency jar files from the project classpath  Finally  open the  lib folder in Eclipse  right click on each required jar file and choose Build Path- gt Add to build path    That will add that particular jar to the classpath for the project   Eclipse will detect the change and automatically compile the classes that failed earlier  and you should now have an Eclipse project with your app in it

[java] How do I import a pre-existing Java project into Eclipse and get up and running?

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