I migrated from NetBeans to Eclipse IDE after 6 year. There were some critical shortcut keys in NetBeans that i used them regularly. One of the most important thing for Migrating from one IDE to another IDE is equivalent shortcut keys in target IDE.
In the following list , there are some important shortcut keys in NetBeans and equivalent in Eclipse:
 
Shortcuts NetBeans Eclipse
Next editor Ctrl + Tab Ctrl + F6
Delete row Ctrl + E Ctrl + D
Organize imports Ctrl + Shift + I Ctrl + Shift + O
Quick fix Alt + Enter Ctrl + 1
Open type Ctrl + O Ctrl + Shift +T
Run F6 Ctrl + F11
Format code Alt + Shift + F Ctrl + Shift +F
Incremental search (like Firefox) Ctrl + F Ctrl + J
Open resource Alt + Shift + O Ctrl + Shift +R
Comment Ctrl + / Ctrl + /
Move line(s) up or down Alt + Shift + Up/Down Alt + Up/Down
Duplicate line(s) up or down Ctrl + Shift + Up/Down Ctrl + Alt + Up/Down
Go to line Ctrl + G Ctrl + L
 
have a nice time.