Eclipse Auto-complete function invalidation solution and modify shortcut key method

Recently in the study of Java, the previous time sub-disk computer can be broken, re-installed after the system found that my eclipse of the automatic completion of the function of the failure, that much trouble ah, what all have to play, so Baidu summed up the following solutions:

1. Click Window-->preferences

2. Follow the steps below:

3. Click OK to go.

Note: In general, automatic completion of the shortcut keys are "alt+/", you can also find below in the picture below or modify the shortcut keys

Eclipse Auto-complete function invalidation solution and modify shortcut key method