KONZE ENTERPRISES android and Flutter Developer Interview Questions and Answers

Polymorphism is the ability of an object to take on many forms.

• Polymorphism allows objects of different classes to be treated as if they are of the same class.

• It is achieved through method overriding and method overloading.

• Example: A parent class Animal can have child classes like Dog, Cat, and Cow. All these child classes can have their own implementation of the method 'makeSound', which is overridden from the parent ...read more

Java interface is a blueprint of a class that has only abstract methods and constants.

• An interface is declared using the interface keyword

• It cannot be instantiated directly

• It can be implemented by a class using the implements keyword

• All methods in an interface are public and abstract by default

• Interfaces can also have static and default methods

• Example: public interface Drawable { void draw(); }