Bhavesh vaswani on Instagram: "These are the SOLID Principles every developer must know before a low-level design interview. They’re not just theory — they’re the foundation of writing clean, maintainable, and scalable code. Let’s simplify these with real-world analogies 👇 1️⃣ S — Single Responsibility Principle (SRP) Definition: A class should do only one job. Analogy: Like a coffee machine — it only makes coffee , not toast . Example: • ❌ Don’t mix “order handling” and “email sending” in one

Leonardo Chiarelli on Instagram: "Liskov Substitution Principle . . . . #dev #java #lsp"