An IDE, or integrated development environment, combines a code editor, build tools, a debugger and code intelligence in one development application.
Immutability in functional programming means data cannot change after creation, so updates produce new values and shared data stays safe to reuse.
Inheritance in object-oriented programming lets a class reuse and extend the fields and methods of a parent class, forming an is-a relationship.
An integration test verifies that several software components work correctly together, such as code with a real database, queue or external service.
An interface in object-oriented programming is a named contract of methods that classes implement, letting code depend on behavior rather than concrete…