Singleton pattern interview questions and answers


Singleton pattern enforces that one and only one instance of a class will exist in an application. This document introduces the singleton pattern and source code examples to get you ready for the interview.

What's included in the purchase

PDF file with the following:

  • Explanation of singleton pattern
  • Source code for a singleton pattern
  • Souce code for a singleton pattern, optimized for multi-threaded app


2 pages



About the author 

The author has over 15 years of experience as architect and engineering director for several Fortune 500 companies.  He loves programming interviews and writes frequently on the topic.  Here are some additional details about the author:

- Expert in C#, .NET, ASP.NET, XML, XSLT, enterprise JAVA and client side technologies

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- Clear understanding of all 3 major mobile platforms – iOS, Android and Windows Phone