Display Line number in Eclipse

This is trivial but useful. especially for debugging. Having line number displayed makes the error “visible”. I mean I can dive in to the problem area.  The feature is off by default. The setting is in the Preferences dialog. Either go in Window -> Preferences or right-click on editor window and select “Preferences…“.In the dialog that appears, go to Editors -> Text Editors and check the “Show line numbers”  as highlighted in the screenshot below.Click OK. And the line numbers appear on the left side of the editor window