Call a Parent Method In Java

Question

I want to Call the Parent Method in Java With A child Reference

Truck tv=new Vehicle();

Truck is the child class and Vehicle is a parent Class should i have to use type casting?

It's not possible from outside the subclass (and there are good reasons for it). — Marcin Łoś, Apr 26 '14 at 13:30
possible duplicate of [Can java call parent overridden method in other objects but not subtype?](http://stackoverflow.com/questions/1032847/can-java-call-parent-overridden-method-in-other-objects-but-not-subtype) — Artur Malinowski, Apr 26 '14 at 13:44
`Vehicle tv=new Vehicle();` is legal and `Vehicle tv=new Truck();` is legal. But what you've written isn't because a Vehicle isn't a Truck (even though a Truck is a vehicle) — Richard Tingle, Apr 26 '14 at 13:44

score 2 · Answer 1 · answered Apr 26 '14 at 13:37

2

You cannot have a reference variable of base class pointing to the object instantiated of the derived class, better have a reference of base class pointing to its own class i.e,

    Truck tv = new Truck();

Thanks, Balaji.

answered Apr 26 '14 at 13:37

balaji

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score 1 · Answer 2 · answered Apr 26 '14 at 13:31

What you are doing will not compile since Truck is a sublass and you are instantiating a superclass.

You need to call Truck's constructor like this:

Truck tv=new Truck();

Using that, all methods that are present in Vehicle can be called on the Truck reference

Call a Parent Method In Java

2 Answers2