Abstract Class in Java

Create an abstract class “Shape” with abstract methods “getArea()” and “getPerimeter()”. Implement two subclasses “Rectangle” and “Circle” which extend “Shape” and implement the abstract methods. Create a “Square” class which…

Create an abstract class “Account” with abstract method “calculateInterest()”. Implement two subclasses “SavingsAccount” and “CurrentAccount” which extend “Account” and implement the “calculateInterest()” method. Create objects of both classes and test…

Abstract classes are an important concept in object-oriented programming (OOP) and are widely used in Java. They are classes that cannot be instantiated, but can be inherited by other classes.…