java - Implementing multiple Interfaces -

java - Implementing multiple Interfaces -

in interface 1 have method a , in interface 2 have method b. both methods implemented in class three. assign instance of 3 one, still can phone call method b of second?

even if possbile, correct?

assuming have this:

public interface { public void methoda(); } public interface b { public void methodb(); } public class c implements a,b { public void methoda(){...} public void methodb(){...} }

you should able this:

a = new c(); a.methoda();

but not this:

a.methodb()

on other hand, can this:

b b = new c(); b.methodb();

but not this:

b.methoda();

edit:

this because define object a of beingness instance of a. although using concrete class initialization (new c()), programming interface methods defined in interface visible.

java