Http://www.diybl.com/course/3_program/java/javajs/20090503/166405.html from
You must have set a workspace of eclipse as the default space, and do not ask again when you start eclipse.
Later, I found it inconvenient. Change back
Under the eclipse installation directory, there is a configuration/. setting directory. The Org. Eclipse. UI. Ide. prefs file is used for this setting.
# Sat Apr 25 01:53:38 GMT 2009
Recent_workspaces_protocol = 3
Max_recent_workspaces = 5
Show_workspace_selection_dialog = true
Eclipse. preferences. Version = 1
Recent_workspaces = f \: \ project \ nd \: \ Java \ NF \: \ Java \ u6e90 \ u7801 \ nd \: \ Java \ WS
Set show_workspace_selection_dialog to true. In the same way, you can delete a useless space in the last row. In the third row, you can set up to several recently opened spaces.
You must go to the eclips installation directory and restart it with the-clean parameter, otherwise it will not take effect.
Cd d: \ Program Files \ eclipse
Eclipse.exe-clean restart eclipse and take effect.