Archives: FAQs

A: It’s dynamic. The tutorial shows how to pass the target class name via command-line arguments to an “Analyzer” class that processes it at runtime—ideal for analyzing classes not known at compile time.

A: You can retrieve: Methods via getDeclaredMethods() Fields via getDeclaredFields() And then loop to display names, types, parameters, return types, etc.

A: You have three options: Class.forName(“MyClass”) — dynamic loading by name someObject.getClass() — when you already have an instance MyClass.class — available at compile time, even for primitives

A: Reflection gives your program “X-ray” vision into its own structure at runtime—letting you inspect or manipulate methods, fields, constructors, and even invoke those dynamically by name.

A: Absolutely. Open both a normal and an incognito browser window, join the chat under different names, and you’ll see messages update in real time—perfect for testing server-side logic and event handling.

A: Yes—the tutorial walks through creating a client folder with index.html, styles.css, and app.js. The UI updates in real time using DOM manipulation, reflecting “user joined”, messages, and disconnections.

A: When a user connects, their name and unique socket ID are stored. The server emits a user-joined event to others. On disconnect, it broadcasts a left event and removes the user from the active list. Real-time presence updates all around!

A: Nope—you just need Node.js, Socket.IO, a text editor like VS Code, and optionally the Live Server extension. The tutorial walks you through project setup, package installation, and crafting a socket server from scratch.

A: Socket.IO provides a higher-level, event-driven interface that uses WebSockets when available—but gracefully falls back to long polling in unsupported environments. This ensures robust, real-time communication even across varying client contexts.

A: No. Airbyte simplifies it by auto-creating the necessary schemas and staging tables in Snowflake during the sync process.