Top 7 Design Patterns Interview Questions

A software design pattern is a general, reusable solution to a commonly occurring problem within a given context in software design.


Explain Singleton Design Pattern?


Difference between Static Class & Singleton Class?


How does padlock work internally? Can we use any other object for padlock instead of Object?


How would you make a class Singleton when we run our application on multiple instances using Load Balancer?


Can I create a clone of Singleton class by calling its Clone() method?


Explain Factory Pattern?


Explain Abstract Factory Pattern? When should we use it?