docs(10_Wiki): 위키 구조 정리 — 언어 튜토리얼 카테고리 폴더 제거 + 신규 자산 동기화

Topic_CSS/Topic_HTML/Topic_JavaScript/Topic_Prompt/Topic_Comfyui 등 기존 카테고리 폴더를 정리하고,
Topic_Graphic/Dev 등 신규 산출물과 Topics 내부 세션/메모리 기록을 동기화.

10_Wiki/Dev/Topic_Java/Java_Intro.md

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+---
+id: java-intro
+title: "Java Intro"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["Java Introduction", "자바 소개"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.9
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: ""
+merge_history: []
+tags: ["java", "programming", "w3schools", "basics"]
+raw_sources: ["https://www.w3schools.com/java/java_intro.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[Java Intro]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+Java (1995, owned by Oracle, running on 3+ billion devices) is a platform-independent, object-oriented language whose syntactic closeness to C++/C# makes cross-language switching relatively easy. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **Origin** — created in 1995, owned by Oracle. [S1]
+- **Use cases** — mobile (especially Android), desktop, web applications, web/app servers, games, database connections. [S1]
+- **Cross-platform** — runs on Windows, Mac, Linux, Raspberry Pi, etc. [S1]
+- **Object-oriented** — gives programs clear structure and reusable code, lowering development cost. [S1]
+- **Similarity to C++/C#** — makes switching between these languages easier. [S1]
+- **Free and open-source**, with large community support. [S1]
+
+## 📖 세부 내용 (Details)
+- Hello World example: [S1]
+```java
+public class Main {
+    public static void main(String[] args) {
+        String name = "John";
+        System.out.println("Hello " + name);
+    }
+}
+```
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+소스에서 모순되는 정보는 발견되지 않음.
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — 이후 Syntax 챕터에서 이 Hello World 예제의 각 구성요소가 상세히 설명된다. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+Hello World (Java):
+```java
+public class Main {
+    public static void main(String[] args) {
+        System.out.println("Hello " + "John");
+    }
+}
+```
+
+## ✅ 검증 상태 및 신뢰도
+- **상태:** draft
+- **검증 단계:** conceptual
+- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
+- **신뢰 점수:** 0.90
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[Java Tutorial]]
+- **관련 개념:** [[Java Syntax]], [[Java OOP]]
+- **참조 맥락:** Java 튜토리얼 전체의 진입점.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — Java Introduction — https://www.w3schools.com/java/java_intro.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "Java Introduction" page (Astra wiki-curation, P-Reinforce v3.1 format).