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GPGautam Pateliamgautam.hashnode.devMar 17 · 3 min read

Strategy Design Pattern

In this article, I will explain the Strategy Design Pattern in a simple and efficient way. First, let’s look at the code below: class PaymentService { public void pay(String type) { if (ty

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MSMohammad Shariful Islamshariful-islam.hashnode.devJan 20 · 4 min read

How Factory and Strategy Patterns Work Together

In software development, writing flexible and maintainable code is key. Two of the most useful design patterns for achieving this are the Factory and Strategy patterns. While they address different challenges, combining them can make your system high...

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MSMohammad Shariful Islamshariful-islam.hashnode.devJan 19 · 4 min read

Strategy Pattern Simplified

The Strategy Pattern lets you choose an algorithm (behavior) at runtime without modifying the main class. Instead of stuffing your code with endless if/else or switch blocks, you move behaviors into separate classes and plug them in when needed. The ...

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KGKartik Guptabackendtechie.hashnode.devJan 7 · 4 min read

Design Patterns

1. Strategy Pattern When to Use: Multiple algorithms or behaviours for the same task Need to switch logic at runtime Want to avoid big if-else or switch statements Example: Payment System ❌ What NOT to do if (type.equals("CARD")) { // card ...

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KMKartik Mehtawriter.mrmehta.inDec 19, 2025 · 32 min read

The Coffee Shop Crisis

Meet Alex. Three months ago, Alex fulfilled a lifelong dream: opening "Rusty Bean", a cozy coffee shop in downtown Portland. Business is booming! Students camp out with their laptops, seniors meet for their morning ritual, and the loyalty program is ...

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GGGiovanni Galanteggalantecode.hashnode.devSep 17, 2025 · 11 min read

What I learned developing a calculator API

INTRODUCTION In this article, I want to talk about the concepts I've been able to observe and learn by developing a Java-Spring Boot REST API that implements the operations of a simple calculator (addition, subtraction, multiplication and division). ...

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NCNikhil Chandrakarnikhilchandrakar.hashnode.devSep 8, 2025 · 4 min read

Strategy Design Pattern

Definition : Formally, strategy design pattern can be defined as a design pattern that defines a family of algorithms and put them into separate classes so that they can be changed at run-time. Lets understand strategy design pattern with help of an ...

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RKRahul Kumarsoftwaredesignpatterns.hashnode.devJul 24, 2025 · 1 min read

Strategy Pattern Under 1 minute - Software Desing Pattern

❓ Problem: You want to choose between different algorithms (sorting, payments, validation, etc.) at runtime. 🧠 Analogy: Think of an online checkout system: At payment, customers can choose their preferred payment gateway—such as UPI, Credit Card, o...

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MKManoj Kumarsystemdesignbymanoj.hashnode.devMay 30, 2025 · 2 min read

System Design ( Day - 44 )

Design Patterns ( Strategy Design ) Why Design PattersBecause Someone has already encountered the common problem and come up with the solution which is already proven and that can be reusable whenever that problem occurs to improve code quality and e...

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JEJAIME ELIAS FLORES QUISPEjaimeelias.hashnode.devApr 29, 2025 · 3 min read

Business Optimization with the Strategy Pattern in Python: Practical Application with Dynamic Discounting

Definition The Strategy pattern allows defining a family of algorithms, encapsulating each one, and making them interchangeable. This way, the behavior of an object can be modified dynamically without altering its internal structure. It is especially...