Apr 10, 2024 · Fundamentals

What Is the State Pattern? Explanation and PHP Implementation Example

The article introduces the State design pattern as a behavioral pattern that lets objects change their behavior when their internal state changes, compares it with the Strategy pattern, and provides a detailed PHP example illustrating its components and usage.

Software ArchitectureState Patternbehavioral pattern

0 likes · 5 min read

What Is the State Pattern? Explanation and PHP Implementation Example

Full-Stack Internet Architecture

Sep 20, 2023 · Fundamentals

Observer Design Pattern in Java: Concepts, UML, and Full Code Example

This article explains the Observer behavioral design pattern, describes its participants, illustrates a real‑world e‑commerce scenario, and provides complete Java code for the observer interface, subject interface, concrete subject, concrete observers, and a test client, concluding with the pattern’s benefits.

Design PatternsJavaObserver Pattern

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Observer Design Pattern in Java: Concepts, UML, and Full Code Example