Design interview questions

https://softwareengineering.stackexchange.com/questions/336282/design-elevator-system-algorithm-and-classes

https://www.quora.com/What-is-the-best-answer-to-Design-an-elevator-system

https://www.youtube.com/watch?v=fITuhLSwbt8

https://softwareengineering.stackexchange.com/questions/336282/design-elevator-system-algorithm-and-classes

https://github.com/joeblau/sample-elevator-control-system

http://massivetechinterview.blogspot.com/2015/07/thought-works-object-oriented-design.html

http://blog.gssxgss.me/category/programming/java/

http://blog.gssxgss.me/

http://blog.gssxgss.me/binary-search-tree-learning-note-1/

http://thought-works.blogspot.com/2012/11/object-oriented-design-for-elevator-in.html

https://www.careercup.com/question?id=1808669

https://stackoverflow.com/questions/493276/modelling-an-elevator-using-object-oriented-analysis-and-design

https://tunaozkasap.wordpress.com/page/2/

http://practice.geeksforgeeks.org/problems/design-elevator



MOTHER of All Design questions 

http://www.shuati123.com/blog/categories/design/



For the Spark Related stuff.


https://weishungchung.com/