How to Enable Autocomplete and Autosuggestion in Eclipse IDE
How to Autocomplete?
Go to the Eclipse IDE Windows menu - Preferences - Java - Editor - Content assist - Activation Window
Under Activation Window - Autoactivation Triggers for Java.
Enter in Autocomplete activation string abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.