The front controller design pattern is used to provide a centralized request handling mechanism so that all requests will be handled by a single handler. This handler can do the authentication/ ...
Top 10 Design Pattern Interview Questions with Answers 1. What is a design pattern? It's a reusable solution to common software design problems. 2. Define the Singleton pattern. Restricts class ...
Singleton pattern helps you to create a single instance of an object throughout the application. They are used in situations like for example if you want to do caching, if you want to cache country ...