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[@geekific](/creator/youtube/geekific)
"The Mediator Pattern Explained and Implemented in Java Behavioral Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=35D5cBosD4c) [@geekific](/creator/youtube/geekific) 2021-07-24T13:00Z 52.8K followers, 42.6K engagements


"Breadth First Search Explained and Implemented in Java BFS Graph Traversal & Theory Geekific"  
[YouTube Link](https://youtube.com/watch?v=9Oev6UgLhiI) [@geekific](/creator/youtube/geekific) 2021-09-18T13:00Z 52.8K followers, 64.5K engagements


"SOLID Design Principles with Java Examples Clean Code and Best Practices Geekific"  
[YouTube Link](https://youtube.com/watch?v=HoA6aZPR5K0) [@geekific](/creator/youtube/geekific) 2021-04-17T13:00Z 52.8K followers, 121.5K engagements


"Understanding Use-Cases & User Stories Use Case vs User Story Object Oriented Design Geekific"  
[YouTube Link](https://youtube.com/watch?v=a3v4-KmDbQA) [@geekific](/creator/youtube/geekific) 2021-08-07T13:00Z 52.8K followers, 73.8K engagements


"The Factory Method Pattern Explained and Implemented in Java Creational Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=EdFq_JIThqM) [@geekific](/creator/youtube/geekific) 2021-05-29T13:00Z 52.8K followers, 266.9K engagements


"Dependency Injection Made Simple with Java Examples Clean Code and Best Practices Geekific"  
[YouTube Link](https://youtube.com/watch?v=GATSXm7WAxU) [@geekific](/creator/youtube/geekific) 2022-03-26T14:00Z 52.8K followers, 84K engagements


"The Builder Pattern Explained and Implemented in Java Creational Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=MaY_MDdWkQw) [@geekific](/creator/youtube/geekific) 2021-06-12T13:00Z 52.8K followers, 125K engagements


"The Strategy Pattern Explained and Implemented in Java Behavioral Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=Nrwj3gZiuJU) [@geekific](/creator/youtube/geekific) 2021-09-25T13:00Z 52.8K followers, 135.6K engagements


"The Abstract Factory Pattern Explained and Implemented Creational Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=QNpwWkdFvgQ) [@geekific](/creator/youtube/geekific) 2021-06-05T13:00Z 52.7K followers, 150.6K engagements


"Bucket Sort Explained and Implemented with Examples in Java Sorting Algorithms Geekific"  
[YouTube Link](https://youtube.com/watch?v=ROnYubH_spM) [@geekific](/creator/youtube/geekific) 2022-05-21T13:00Z 52.8K followers, 39.3K engagements


"The Visitor Pattern Explained and Implemented in Java Behavioral Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=UQP5XqMqtqQ) [@geekific](/creator/youtube/geekific) 2021-10-23T13:00Z 52.8K followers, 74.9K engagements


"The Template Method Pattern Explained Implemented in Java Behavioral Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=cGoVDzHvD4A) [@geekific](/creator/youtube/geekific) 2021-07-10T13:00Z 52.8K followers, 50.8K engagements


"The Composite Pattern Explained and Implemented in Java Structural Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=oo9AsGqnisk) [@geekific](/creator/youtube/geekific) 2021-12-04T14:00Z 52.8K followers, 77K engagements


"The Volatile and Synchronized Keywords in Java Atomic Variables Java Multithreading Geekific"  
[YouTube Link](https://youtube.com/watch?v=71dgtPrbToE) [@geekific](/creator/youtube/geekific) 2021-05-01T13:00Z 52.8K followers, 65.1K engagements


"What is Docker Why should you use Docker Docker Introduction Geekific"  
[YouTube Link](https://youtube.com/watch?v=AY1mE8JILJQ) [@geekific](/creator/youtube/geekific) 2023-07-22T13:00Z 52.8K followers, 18.5K engagements


"Shell Sort Algorithm Explained and Implemented with Examples in Java Sorting Algorithms Geekific"  
[YouTube Link](https://youtube.com/watch?v=IViqgakt-Eg) [@geekific](/creator/youtube/geekific) 2021-02-24T19:00Z 52.8K followers, 44.3K engagements


"The Proxy Pattern Explained and Implemented in Java Structural Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=TS5i-uPXLs8) [@geekific](/creator/youtube/geekific) 2022-02-05T14:00Z 52.8K followers, 55.5K engagements


"The State Pattern Explained and Implemented in Java Behavioral Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=abX4xzaAsoc) [@geekific](/creator/youtube/geekific) 2021-09-11T13:00Z 52.8K followers, 76K engagements


"What are Design Patterns Introduction to Design Patterns and Principles Geekific"  
[YouTube Link](https://youtube.com/watch?v=mE3qTp1TEbg) [@geekific](/creator/youtube/geekific) 2021-05-15T13:00Z 52.8K followers, 164.3K engagements


"System Design Interview: Netflix A Deep Dive into Scalable Video Streaming Systems Geekific"  
[YouTube Link](https://youtube.com/watch?v=ujssdOvoUV0) [@geekific](/creator/youtube/geekific) 2024-10-19T13:01Z 52.8K followers, 6630 engagements


"The Observer Pattern Explained and Implemented in Java Behavioral Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=-oLDJ2dbadA) [@geekific](/creator/youtube/geekific) 2021-08-28T13:00Z 52.7K followers, 123.6K engagements


"Radix Sort Algorithm Explained and Implemented with Examples in Java Sorting Algorithms Geekific"  
[YouTube Link](https://youtube.com/watch?v=4ungd6NXFYI) [@geekific](/creator/youtube/geekific) 2021-03-24T19:00Z 52.7K followers, 30.7K engagements


"The Singleton Pattern Explained and Implemented in Java Creational Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=tSZn4wkBIu8) [@geekific](/creator/youtube/geekific) 2021-05-22T13:00Z 52.7K followers, 170.5K engagements


"What is RegEx Introduction to Regexes Regular Expressions and Java Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=HvryGBPmNl8) [@geekific](/creator/youtube/geekific) 2021-07-07T18:00Z 52.7K followers, 36.2K engagements


"The Command Pattern Explained and Implemented in Java Behavioral Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=UfGD60BYzPM) [@geekific](/creator/youtube/geekific) 2021-07-03T13:00Z 52.7K followers, 92.2K engagements


"Garbage Collection in Java What is GC and How does it Work in the JVM Types of GCs Geekific"  
[YouTube Link](https://youtube.com/watch?v=XXOaCV5xm9s) [@geekific](/creator/youtube/geekific) 2022-11-05T14:00Z 52.7K followers, 59.4K engagements


"Trees Compared and Visualized BST vs AVL vs Red-Black vs Splay vs Heap Geekific"  
[YouTube Link](https://youtube.com/watch?v=hmSFuM2Tglw) [@geekific](/creator/youtube/geekific) 2021-06-16T18:00Z 52.7K followers, 20K engagements


"Abstract Data Types vs. Data Structures ADT vs. DS Geekific"  
[YouTube Link](https://youtube.com/watch?v=nDeIz2Kq0RE) [@geekific](/creator/youtube/geekific) 2021-01-06T19:00Z 52.7K followers, 18.6K engagements


"Mocks vs. Fakes vs. Stubs Mocking in Java Mock Frameworks Geekific"  
[YouTube Link](https://youtube.com/watch?v=oFBkzrwwwW8) [@geekific](/creator/youtube/geekific) 2022-06-04T13:00Z 52.7K followers, 11.9K engagements


"Streams min() vs max() in X min #geekific #min #max #in1min"  
[YouTube Link](https://youtube.com/watch?v=trp76umd0go) [@geekific](/creator/youtube/geekific) 2025-10-18T13:01Z 52.7K followers, 1186 engagements


"Depth First Search Explained and Implemented in Java DFS Graph Traversal & Theory Geekific"  
[YouTube Link](https://youtube.com/watch?v=x6iO0ZH9h7Q) [@geekific](/creator/youtube/geekific) 2021-10-02T13:00Z 52.7K followers, 55.6K engagements


"AVL Tree Explained and Implemented in Java AVL Trees Rotations Self-Balancing Trees Geekific"  
[YouTube Link](https://youtube.com/watch?v=Jj9Mit24CWk) [@geekific](/creator/youtube/geekific) 2021-05-12T18:00Z 52.7K followers, 42.4K engagements


"What is a Thread Threads Process Program Parallelism and Scheduler Explained Geekific"  
[YouTube Link](https://youtube.com/watch?v=hN2Yrf4tqTY) [@geekific](/creator/youtube/geekific) 2021-04-24T13:00Z 52.7K followers, 112.5K engagements


"The Prototype Pattern Explained and Implemented in Java Creational Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=DcFhITC9v0E) [@geekific](/creator/youtube/geekific) 2021-06-19T13:00Z 52.8K followers, 75.1K engagements


"The Decorator Pattern Explained and Implemented in Java Structural Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=v6tpISNjHf8) [@geekific](/creator/youtube/geekific) 2021-12-25T14:00Z 52.8K followers, 109.1K engagements


"The Facade Pattern Explained and Implemented in Java Structural Design Patterns Geekific"  
[YouTube Link](https://youtube.com/watch?v=xWk6jvqyhAQ) [@geekific](/creator/youtube/geekific) 2022-01-08T14:00Z 52.8K followers, 60.8K engagements