# Products sharing a common source framework

### Layout on file system

- The Java source files for two products require a common framework.
- Projects and common framework are in separate directories which have their own source and output folders.

### Steps for defining corresponding projects

1. Open a Java perspective, select the menu item File > New > Project.... to open the New Project wizard.

2. Select Java project in the list of wizards and click Next.

3. On the next page, type "Product1" in the Project name field. Click Next.

4. On the next page, Select "Product1" source folder.

   Click Link Additional Source to Project button in view bar.

5. In Link Additional Source click Browse.... and choose the `D:\Product1\JavaSourceFiles` directory.

   Type "src" in the Folder name field.

6. Click OK to close the dialog.

7. Click OK in confirmation dialog to have "Product1/bin" as default output folder.

8. Your project source setup now looks as follows:

9. Click Finish.

10. Edit project "Product1"properties and select Java Builder Path page.

    On Source tab, click Add Folder....

11. On Source Folder Selection click Create New Folder....

12. In New Folder, type "src-common" in the Folder name field.

    Click Advanced>> and check Link to folder in the file system.

    Then click Browse.... and choose the `D:\Framework\JavaSourceFiles` directory.

13. Click OK twice to close dialogs.

14. Your project setup now looks as follows:

15. Click OK.

16. Repeat these steps for "Product2".

17. You now have two Java projects which respectively contain the sources of "Product1" and "Product2" and which are using the sources of "Framework".

Note: Files in "src-common" are shared. So editing "Common.java" in "Product1" will modify "Common.java" in "Product2". However they are compiled in the context of their respective projects. Two "Common.class" files will be generated; one for each project. If the two projects have different compiler options, then different errors could be reported on each "Common.java" file.

Java projects
Java views

Working with build paths
Creating a new Java project
Creating a Java project with source folders
Creating a new source folder
Using the Package Explorer

New Java Project Wizard
Package Explorer View