An interface in Java represents an abstract type; it is a collection of abstract methods and constants. All methods in an interface are abstract, and thus they have only signatures. All variables in an interface are implicitly final and static,…
An interface in Java represents an abstract type; it is a collection of abstract methods and constants. All methods in an interface are abstract, and thus they have only signatures. All variables in an interface are implicitly final and static,…
A polymorphic reference is a variable that can refer to different types of objects. A reference can refer to an object of its class, or to an object of any subclass. When we call a method through a polymorphic reference,…