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📞 Java Networking — Telephone Exchange & Postal Pigeon System! 🐦📞

⬅️ Previous: Concurrency Utilities | 🏠 INDEX | ➡️ Next: JDBC

Overview

📞 Java Networking — Telephone Exchange & Postal Pigeon System! 🐦📞 — Quick Facts

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[🏠 INDEX](./00_INDEX.md): ➡️ Next: JDBC

Topic 1

📞 Real-World Analogy: Telephone Exchange & Postal Pigeon System! 🐦

🌐 Networking ek Telephone Exchange hai — log phone uthate hain, exchange connect karta hai,…

Topic 2

📌 1. Networking Basics — Exchange Architecture 🏢

📡 `mermaid graph TB subgraph TCP["📞 TCP — Telephone Call (Reliable)"] C1["📱…

Topic 3

📌 2. TCP Server & Client — Telephone Exchange 📞

🔗 `java import java.io.; import java.net.; // ═══════════════ SERVER — Telephone Exchange…

Topic 4

📌 3. Multi-Threaded Chat Server — Group Call Conference 🗣️

🛜 `java import java.io.; import java.net.; import java.util.*; import…

Topic 5

📌 4. URL & HTTP — Modern WhatsApp Calling 🌐

⚡ `java import java.net.; import java.net.http.; import java.time.Duration; public class…

Topic 6

📌 5. UDP Communication — Postal Pigeon System 🐦

🔧 `java import java.net.*; // ═══════════════ UDP SERVER — Pigeon Coop (receiving) 📬…

Topic 7

📌 6. InetAddress & Network Info — Phone Directory 🗂️

💻 `java import java.net.; import java.util.; public class NetworkInfo { public static…

Topic 8

📊 Comparison Table — TCP vs UDP vs HTTP

Topic 9

❌ Common Mistakes (Galti Chart)

🌐 | # | Galat ❌ | Sahi ✅ | Kyun? | |---|---------|--------|-------| | 1 | Socket close na…

Topic 10

🧪 Practice Exercises

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ServerSocket create karo port 7777…

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Client ka message receive karo

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Uppercase me echo back karo

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"exit" pe connection close

Topic 11

✅ Summary Table

🔗 | Concept | Key Point | |:-------:|:---------:| | TCP | Reliable + ordered — phone call…

Comparison

📊 Comparison Table — TCP vs UDP vs HTTP

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:-------:: :----------:

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Protocol: TCP

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Reliable: ✅ Haan

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quick Quiz

Quiz — Question 1

📞 Java Networking — Telephone Exchange & Postal Pigeon System! 🐦📞 ka sabse sahi definition kya hai?

Complete! 🎉

📞 Java Networking — Telephone Exchange & Postal Pigeon System! 🐦📞 Complete!

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