Good practise?

New to coding in Java.

I have a constructor that sets up a JFrame with panels, buttons, etc. and I
want to disable some of the buttons when the frame first appears.
I will also need to disable selected controls during further processing,
probably using a purpose-built method.
I know how to do this.

Don't want to start a heated debate over this but...

My question: is it acceptable programming practise to invoke my purpose-built
method from within a constructor?

Thanks.
.