IntelliJ IDEA IDEs are very popular among developers, especially Java folks. In addition to that, they support multiple languages such as Java, Scala, C/C++, Python, etc.
I have recently switched from Eclipse to IntelliJ for Java development. At first, I had very difficult time to give up Eclipse convenient shortcuts. As a result I came up with follow table as a small list of equivalent Eclipse shortcuts in IntelliJ.
- Ctrl + F → Find
- Ctrl + Shift + F → Search the project
- Ctrl + Shift + F10 → Run the test in the selected cursor
- Ctrl + Shift + N → Open a file that matches the pattern
- Ctrl + Tab → Selecting the tab
- Ctrl + F4 → Close the current tab
- Ctrl + B → Move to declaration
- Ctrl + G → Go to line
- Ctrl + Winkey + Alt + L → Correct indentation (Windows users, remove Winkey
- Alt + Winkey + Left/Right → Switching between tab (Windows users, remove Winkey)
- Zoom in/out use → Ctrl + Mouse wheel
By default zooming is deactivated in the IntelliJ, to enable it
- Open the Settings/Preferences dialog, expand the Editor node, and click General.
- Make sure that the setting Change font size (Zoom) with Ctrl+Mouse Wheel is enabled.
To reset zooming,
- Ctrl + Shift + A
- Type Reset font size
Enabling permanent line number
Go to setting → editor → general → appearance → show line numbers
 IntelliJ idea help page