Following are some tips that shall help you in avoiding potential issues and for being a little more productive while working with eclipse.Avoid installation problems
Recovering your messed up workspace
Corrupted workspace is a common occurrence and troublemaker for many developers. So If your Eclipse installation has startup errors or a corrupted configuration, it might be time to get a fresh start. Start Eclipse with the –clean option, and all cached framework and runtime data will be cleared out. This often helps fix plug-in issues and improve general stability.
With new plugins getting added to the core eclipse functionality and the need to use additional third party plugins, the memory requirements for your eclipse workspace increases. The default memory allocation configured in eclipse is not enough for most J2ee development projects and that causes a sluggish response from you eclipse. If you get Out of Memory errors or sluggish response, you may have to increase the defaults that are set in eclipse.ini file in the Eclipse installation directory. In particular, if you get an error about “PermGen” memory (permanent generation), add this line at the end and restart Eclipse: -
Side by side editing
By dragging editors, you can show two files side by side. You can also edit two portions of the same file by using the Window > New Editor command.
Automatic code improvements
Set up Eclipse to automatically format source code and organize imports on every save. Select Window > Preferences > Java Editor > Save Actions to enable these actions. This dialog also lets you configure actions like removing unnecessary casts or adding missing annotations. Configuring your eclipse with optimized Compiler, Formatter and CheckStyle settings is described in detail in the post Using Eclipse Effectively
It is productive and convenient to use keyboard shortcuts for performing certain tasks in eclipse rather than looking for options to do the same in various navigation menus. For example looking up references of a variable, method or a class can be quickly achieved via shortcut Ctrl+Shift+g. For your reference I have included a list of the most important keyboard shortcuts in my post Eclipse Keyboard Shortcuts