How to add semicolon after method call when inside parameter list in IntelliJ IDEA?

For Windows or Linux users, Ctrl+Shift+Enter.

For macOS/OS X users, ⌘ Command+⇧ Shift+Enter.

That finishes the statement you're currently writing. Try it in a few different situations, like in if statements, for loops etc, and you'll see that it'll complete the line and open some curly braces for you if necessary.

You can add a keymap of your own. I added Ctrl+; to my Keymaps for the "Complete Current Statement" action. This saved me an extra key stroke and made it a little bit more intuitive.

1. Go to Settings > Keymap
2. In the search box, enter "Complete Current Statement".
3. Right-click on the entry and select "Add Keyboard shortcut"
4. With the First Stroke field hightlighted, enter your key combination. E.g., Ctrl+;, which will display as Ctrl+Semicolon
5. Click OK, and OK to save and exit.

You can opt to remove or keep the existing mapping. Should look something like this when you're done:

if you want always have it just do this