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Jul 24, 2025 · 1 min read · ❓ 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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Jul 24, 2025 · 1 min read · Real-World Analogy Think of an electrical adapter for charging your phone while traveling abroad. The wall socket’s shape varies between countries, and your charger may not fit. Instead of buying a new charger, you use an adapter that connects your c...
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Jul 24, 2025 · 1 min read · ❓ Problem: You want to create objects without knowing their exact class or logic. 🧠 Analogy: Think of a restaurant where you say “I want a sandwich” and the kitchen (factory) decides whether to make a veg or non-veg sandwich. ✅ Advantages: Centra...
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Jul 24, 2025 · 1 min read · Design patterns in software engineering are standard solutions to common problems you might encounter while designing software. Let’s break down the most popular ones in a simple and clear way. 💡 Problem: You only want one logging instance (or confi...
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