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Observer Design Pattern

Get the Code: http://goo.gl/EYGnQ Best Design Patterns Book : http://goo.gl/W0wyie MY UDEMY COURSES ARE 87.5% OFF TIL July 16th ($9.99) https://www.udemy.com/ ➡️ Python Data Science Series for $9.99 : Highest Rated & Largest Python Udemy Course + 56 Hrs + 200 Videos + Data Science https://bit.ly/Master_Python_35 ➡️ New C++ Programming Bootcamp Series for $9.99 : Over 23 Hrs + 53 Videos + Quizzes + Graded Assignments + New Videos Every Month https://bit.ly/C_Course_35 Welcome to my Observer Design Pattern Tutorial. I cover a lot in this tutorial including the Observer pattern, how to use it with threads and much more. The Observer pattern is a software design pattern in which an object, called the subject (Publisher), maintains a list of its dependents, called observers (Subscribers), and notifies them automatically of any state changes, usually by calling one of their methods.