Now do live more and more often required to use eclipse in java and ruby & rails project conducted between the tangential shear from the past, because in the rails project used a coloring Aptana preferences, the results open the java project source code grammar to identify a mess, think eclipse should be able to start when you first designated workspace, then start the search parameters, there is indeed, that is,-data of this, so in the ubuntu desktop to create a starter, order the importation of: 

~/eclipse -data ~/eclipse_workspace_java


This double-click on the starter could be ~ / eclipse_workspace_java the workspace to open eclipse

Similarly, for the rails, you can create another starter 

~/eclipse -data ~/eclipse_workspace_ror


Java and ruby on now let peace prevail, it seems that tomorrow搞个have a c + + project? hehe.