Stop Writing If-Else: Refactor Java Like a Senior

When business rules get complex, simple switch expressions or if-else chains will ruin your architecture. In this video, we refactor messy Java code using the Strategy Pattern to keep it clean, scalable, and compliant with the Open-Closed Principle (OCP). Source code: https://github.com/borysnikolenko/tip... Timestamps: 00:00 The If-Else Nightmare & Switch Expression 00:52 Why Switch Expressions Fail 02:11 The New Business Requirements 04:47 Introducing the Strategy Pattern 05:35 Implementing Discount Strategies 08:10 Creating the Strategy Factory 09:20 Matching Strategies to Customer Types 11:00 Applying the Factory in the Calculator 12:22 Why you shouldn't use Double for money in Java 13:40 Final Review: Junior vs Senior Architecture