Eclipse 3.2 has a run last lunched shortcut key, that is, the project that runs the last time. In this way, when you change a configuration, you can use a shortcut key without clicking the mouse,
However, this option is not available in 3.5. You can modify the following URL,
Windows --> preference --> Run/debug --> launching
There is a launch operation in it. Select the first always launch the previusly launched application,
In keys, find the command is run and category is run/debug. The default shortcut is Ctrl + F11.
Http://help.eclipse.org/galileo/index.jsp? Topic =/org.eclipse.jdt.doc. User/reference/menus/run/ref-rll_run.htm
Run last launched/run
Select the run last launched/Run Command [] to re-launch the last configuration or launch the current selection in run mode. You can also use the keyboard shortcut cut Ctrl + F11
New in 3.3 is the ability to launch the selected resource. this feature shares the run last launched command, so when it is enabled, it in effect replaces the run last launched with the Run Command.
the preference for launching last or launching the selected resource can be chnaged on the run/debug> launching preference page