Is use of constructor is only initializing variables or it have other uses?

Question

What are use of constructor? I understand it only intilize variables.

Answer 1

https://www.sololearn.com/discuss/1144214/?ref=app
https://www.sololearn.com/discuss/1801634/?ref=app
https://www.sololearn.com/discuss/564101/?ref=app

Answer 2

It is main use but other uses are possible.