TypeScript Extend Interface: extends, Merging and & Types
Extend a TypeScript interface with extends, combine several parents, merge declarations, and learn when an intersection type (&) is the better fit.
extends vs implements in Java: Differences With Examples
Learn extends vs implements in Java with examples, a comparison table, using both in one class, interfaces extending interfaces, generics bounds and FAQs.
Java Inheritance: extends, super, Types and Examples
Java inheritance explained with extends and super, what a subclass inherits, types of inheritance, final and sealed classes, and composition.
Multiple Inheritance in Java: Interfaces and the Diamond Problem
Multiple inheritance in Java with interfaces and default methods, the three rules that resolve the diamond problem, and composition as an option.
Method Overloading vs Overriding in Java: Rules and Examples
Method overloading vs overriding in Java with rules, overload resolution, @Override, covariant returns and the traps that come up in interviews.
Method Hiding in Java: Static Methods vs Overriding
Method hiding in Java happens when a subclass redeclares a static method. See how it differs from overriding, the compiler rules and safer designs.