why close a project?

an eclipse workspace can contain any number of projects. a project can be either in the open state or closed state.

open projects −

• consume memory.

• take up build time especially when the clean all projects (project → clean all projects) with the start a build immediately option is used.

how to close a project?

if a project is not under active development it can be closed. to close a project, from the project select the close project menu item.

closed project in package explorer

a closed project is visible in the package explorer view but its contents cannot be edited using the eclipse user interface. also, an open project cannot have dependency on a closed project. the package explorer view uses a different icon to represent a closed project.