Sagar Rathod on Instagram: "🔌 Interface in Java – Rule Book for Classes An interface is like a rule book that tells a class what methods it must have, but not how to write them 💻 👉 Easy example: Mobile charger 🔌 works with different phones 📱 Charger is the interface, phones are the classes that implement it. 📌 Why use interface? ✔ Same rules for many classes ✔ Flexible & clean code ✔ Supports multiple inheritance 📚 Very important topic for OOPs, exams & interviews. 👉 Save this reel for r