Is there a shortcut on Android Studio to convert a text to uppercase?

Select the text, then go to Edit → Toggle Case (Ctrl+Shift+U on Windows).

The IntelliJ shortcut is evidently Ctrl+Shift+U (Command+Shift+U on Mac) and should work since Android Studio is based off of it. Here's their documentation page.

You need to keep Caps Lock on while using this shortcut.

I could not get the shortcut Ctrl+Shift+U to work in Android Studio on Ubuntu 14.04 until I turned on Caps Lock.

Sometimes some weird things happening. I am using Ubuntu 18.10.

My string is like :

Now when I press CTRL+SHIFT+U then I am getting output like:

So I tried with CTRL+SHIFT+WINDOWS+U and its worked perfectly.

Note : I have kept CAPS LOCK ON.

Thank you.