I installed the Eclipse classic for java development on Ubuntu 12.04. I have installed Sun Java JDK 7 as well. Sometime back i had taken a copy of my workspace and whenever i used to do a new install, i simply used to paste that workspace copy in the new workspace created by eclipse and it used to work like a charm. But now even after i restart eclipse, it doesnt show me the projects from the workspace. Kindly let me know what to do. Thank you for your time.
The proper way of doing it it to right click in the package explorer and select "Import -> General -> Existing project" into the workspace and then import your projects. The presence of a project in the folder of the workspace is not enough to ensure that Eclipse will show you your projects. They need to be registered in the metadata of your workspace.