Zoom in and out in Eclipse
Do you use Eclipse for presentations? In that case I bet you want to zoom in and out in order to handle different resolutions. That feature is not built in. I found a good answer at StackExchange.
In short, select "Help/Install New Software" and add http://eclipse-fonts.googlecode.com/svn/trunk/FontsUpdate/ as a site to "Work with". Pick the FontsFeature and install it. There should be two toolbar buttons for zooming in and out and the keyboard shortcuts Ctrl+- and Ctrl+= can be used as well, unless Eclipse has reserved them for something else.