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Chain of Responsibility: split merged handlers, add missing Level3/Critical classes, Java 25, H6 labels, README mapping

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Ankur
2026-06-24 15:55:27 +05:30
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@@ -305,6 +305,23 @@ javac 02-structural/proxy/*.java -d out/proxy
java -cp out/proxy proxy.Main
```
### Chain of Responsibility (`03-behavioral/chain-of-responsibility/`)
| Post Section | File(s) |
|---|---|
| The Problem: Rigid Routing Logic | illustrative only — not part of this repository's runnable example |
| Implementation: Support Ticket Escalation — base handler | `SupportHandler.java` |
| Implementation: Support Ticket Escalation — the ticket | `SupportTicket.java` |
| Each concrete handler checks only its own responsibility — Level 1 & 2 | `Level1Support.java`, `Level2Support.java` |
| Level3Support and CriticalIncidentTeam follow exactly the same shape | `Level3Support.java`, `CriticalIncidentTeam.java` |
| The chain is assembled in one place | `Main.java` |
Run it:
```bash
javac 03-behavioral/chain-of-responsibility/*.java -d out/chain
java -cp out/chain chain.Main
```
## Reference
- *Design Patterns: Elements of Reusable Object-Oriented Software* — Gamma, Helm, Johnson, Vlissides