Java 25 was released today as the latest LTS version of the language, meaning it will be supported by Oracle for at least ...

Faduma Abukar, photographed in Addis Ababa on July 9, 2025. Editor at Large It was heartbreak that almost ended Faduma Abukar. But an opportunity enabled her to turn it into a new beginning. For years ...

Twenty-three years ago, in his Design Principles and Design Patterns article, Robert "Uncle Bob" Martin boiled down the Liskov substitution principle to the idea that "derived classes should be ...

remove-circle Internet Archive's in-browser bookreader "theater" requires JavaScript to be enabled. It appears your browser does not have it turned on. Please see ...

We will focus on the relationship between polymorphism and Java inheritance. The main thing to keep in mind is that polymorphism requires an inheritance or an interface implementation. You can see ...

Inheritance and composition are two programming techniques developers use to establish the relationship between classes and objects. Whereas inheritance derives one class from another, composition ...

Part 1: Exploring the HR System Download the src folder and import the project into IntelliJ Idea In this exercise, we'll create the Human Resources Management System mentioned in the theory section ...

1. A plastic manufacturer sells plastic in different shapes like 2D sheet and 3D box. The cost of sheet is Rs 40/ per square ft. and the cost of box is Rs 60/ per cubic ft. Implement it in Java to ...