Question

I have two async classes in my application which you can see below

class RegisterTokenAsync extends AsyncTask<String, Void, String>

and

class AuthenticateTokenAsync extends AsyncTask<Integer, Void, String>

now I want to create one other Base class and extends this two classes from that base class, but I can’t understand how I can do that ?

Answer 1

Java(also in android) Doesn’t support Multiple inheritance so you cant extend two class.

you can Use Multilevel inheritance.

Like as,,

class A{}

class B extends A{}

class C extends B{}   

Or there are also Interface,that can help….