abstract class constructor practical use

Question

Can we have constructor in abstract class ?

If yes, what the use of that because we can't instantiate the Abstract class and constructor will never call.

"Constructor" is not really good name. It suggests that it is responsible for constructing (creating) object, but it is not really true. `new` keyword is responsible for creating (uninitialized) object, constructor code is responsible for *initializing* (setting up) that object. So constructor in abstract class is part of initialization process only, which can be part of constructing *subclass* instance. — Pshemo, May 02 '18 at 14:49
Rohit - Don't get the impression from Pshemo's comment above that **you've** used the term incorrectly. You haven't. It's just that the term itself is slightly-incorrect when viewed from a Java (or several other languages) perspective, `initializer` would have been a better term (for the reasons he/she gives). But it's not the term that got used. :-) — T.J. Crowder, May 02 '18 at 14:56

score 2 · Accepted Answer · answered May 02 '18 at 14:43

2

Yes. The implementing class can call it.

answered May 02 '18 at 14:43

J Fabian Meier

score 2 · Answer 2 · answered May 02 '18 at 14:44

2

Yes.

For inheritance. So the sub class can use it.

answered May 02 '18 at 14:44

xingbin

2 Answers2