Learning Programming Design Patterns. Posted: June 3, 2025 | Last updated: June 3, 2025. In this video I discuss the importance of learning about computer architecture and design patterns.

The Observable design pattern is found in many Java APIs and in reactive programming. Here's an introduction to the timeless Observable pattern in Java.

With performance optimizations seemingly having lost their relevance in an era of ever-increasing hardware performance, there are still many good reasons to spend some time optimizing code. In a re… ...