What is similarities between interface and classes?

Answer 1

The similarities are:

a. They are both java basic object types

b. They both can contain variables and methods (With difference being class methods have implementation code whereas the interface methods can only have declarations)

c. They can both be inherited using Inheritance (extends keyword for classes and implements keyword for interfaces)

Answer 2

Both interfaces and classes are fundamental concepts in object-oriented programming. They both define blueprints for creating objects, allowing for code reusability and modularity. However, the key difference is that classes can provide concrete implementations for their methods, while interfaces only define method signatures without any implementation. Additionally, classes can implement multiple interfaces, but can only inherit from one class in most programming languages.

Answer 3

Well, darling, an interface is like a classy lady in a ball gown - it sets the standard without any implementation details, just like a class with all its fancy methods and variables. Both interfaces and classes can be inherited, but remember, an interface is more like a contract - you gotta follow its rules if you wanna play in its sandbox, whereas a class is more like a bossy older sibling telling you what to do.

Answer 4

Oh, dude, it's like asking what's the similarity between a burger and a sandwich - they both have bread, right? So, interfaces and classes in programming both define blueprints for objects, but classes can have both implemented methods and member variables, while interfaces only have method signatures. It's like the class is the whole burger with all the fixings, and the interface is just the bun telling you what should be in there.

Answer 5

Classes and Interfaces are both Java files. They are saved as .java files with the name as the public class or public interface name.

The difference is that, classes are fully coded. That is, they have all the necessary variables and methods coded in them. But in case of Interfaces, only methods are declared. They are not defined. Interfaces are only like skeletons whereas classes can implement interfaces and complete the skeleton.

Answer 6

The similarities are:

a. They can both be used for inheritance

b. They can both have methods (Of course interfaces can have only method declarations whereas classes can also have code inside methods)

c. They can both have variables (We can declare the access modifier class variables but for interfaces they are by default public, static and final)

d. A class can be instantiated but an interface cannot.