System Assistant Interview Questions and Answers

Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.

• Abstract class can have constructors, fields, and methods, while interface cannot have any implementation.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract classes are used to define common characteristics of subclasses, while interfaces are used to define a contract for classes to implement.

• Example: Abstract class - Anim...read more