While using Force.com IDE, I closed the "Apex Test Runner" and "Execute Anonymous" pane by mistake. They are usually right next to the Problems pane (see attached image). Does anyone know how to get them back? I am looking all over the menu options but no luck in finding the solution. I am using Eclipse Juno Service Release 2 version with Force.com IDE version 220.127.116.11404021749.
One way, assuming you have the Force.com perspective selected in the top right, is to select Window -> Reset Perspective.
Otherwise you can use Window -> Show View and use the search field to find the views by name and open them one by one. (And add any other views that are not part of the default perspective views.)
See this - Force.com IDE 18.104.22.168510211056 in Eclipse missing run test class option - sad but true - also notice to select specific class otherwise you'll be running all ..