Is it not possible to implements same interface with multiple classes in java ?

Question

I'm new to java and right now i'm learning interface, i learned basic concepts of it. But when i tries to implement same interface with multiple classes it shows errors.
You can visit code with following link .

https://code.sololearn.com/cSqGdcRau5rW/?ref=app

Where i made mistake ?
Or is it not possible to implement same interface with multiple classes ?
Please explain :)

Answer 1

When you implement a interface, you need to use all the methods mentioned in that interface in the class you implemented the interface into.
That is, if the number of methods in interface is x then the class implementing the interface should also have those x methods in it.
You have written 3 methods in your interface, but only used 1 method in a class and 2 method in other class. That's your error.

Answer 2

Ohh! Got it:)
Able to run after using all methods in both class. Thank you Chetali Shah :)

Answer 3

Yes you can but you have to override all its abstract methods in its each implementation classes