Maybe this article from Eclipse One Tips will help you:
How to run the last launched application
The answer lies in a preference hidden on the Run/Debug page:
- Go to Window > Preferences > Run/Debug > Launching.
- Select the option Always launch the previously launched application. It’s located at the bottom of the dialog.
The preference should look something like this:
Now you’re free to press
F11, Ctrl+F11 or click the Run/Debug
icons on the toolbar with confidence, knowing it’s going to run what
you expect it to run.One question arises: How do you quickly run a class as a specific
application (eg. a JUnit test) if you can’t press F11 to
run it? You have some options available:
- The fastest way is to use keyboard shortcuts. Eclipse allows you to launch classes using a keystroke, including JUnit tests, Java
applications, etc using Alt+Shift+X.- Alternatively, right-click on the class and select Run As. The submenu will show available options for launching the class.
- Lastly, you could click the pulldown arrow on the run/debug icons in the toolbar and select Run As. The submenu once again shows
available options for launching the class.