Discuss the use of multiple interfaces in a single class and the concept of interface inheritance.

Interfaces are used to define stronger is-a relationships because one class can inherit multiple interfaces.  Ture or false

What are the performance implications of Interfaces over abstract classes?

Abstract classes and interfaces may both be used to accomplish the goal of defining the behaviour of common objects.Which factors should you take into account when deciding whether to utilise an interface or an abstract class?

Define Interface testing in brief.

Both abstract classes and interfaces may be used to express common object behaviour.What factors should you consider when deciding whether to utilise an interface or an abstract class?

Discuss the concept of multiple inheritance through interfaces and its advantages compared to multiple inheritance through classes.

Why would someone declare a class as abstract? How might Interfaces help you to achieve multiple inheritance?

Abstract classes and interfaces may both be used to accomplish the goal of defining the behaviour of common objects.Which factors should you take into account when deciding whether to utilise an interface or an abstract class?

A subclass of an abstract class must provide concrete implementations for each of the parent class's abstract methods in order to be considered a subclass. What are your thoughts on this?