Can anyone tell me what these bookmarks are in the eclipse editor and how do I get them out? I do not know how they were to appear there, which button I pressed, where I clicked.
These are spaces and other characters such as tab and line break. There is a shortcut on the toolbar that enables / disables this setting. The button that is doing the action is in yellow (the third from left to right) in the image.
Anotherwaytohide/displayisthroughwindow>prefereces
menu.InthethreeviewtheleftgoGeneral>Editors>TextEditor
.UnchecktheoptionshowWhitespacecharacters
asintheimagebelow: