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.
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+---
+id: java-files-delete
+title: "Java Files Delete"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["delete()", "자바 파일 삭제"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.87
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: ""
+merge_history: []
+tags: ["java", "programming", "w3schools", "files", "io", "delete"]
+raw_sources: ["https://www.w3schools.com/java/java_files_delete.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[Java Files Delete]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+`delete()` works identically on files AND directories, but folders must be EMPTY first — the same method call (`myObj.delete()`) succeeds on a populated file yet fails on a non-empty directory, with no separate API for the two cases. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **`delete()`** — deletes a file, or an empty folder; returns `true`/`false` for success/failure. [S1]
+- **Folder deletion constraint** — a directory must be empty before it can be deleted with `delete()`. [S1]
+
+## 📖 세부 내용 (Details)
+- Delete file: `File myObj = new File("filename.txt"); if (myObj.delete()) { System.out.println("Deleted the file: " + myObj.getName()); } else { System.out.println("Failed to delete the file."); }`. [S1]
+- Delete folder (must be empty): `File myObj = new File("C:\\Users\\MyName\\Test"); if (myObj.delete()) { System.out.println("Deleted the folder: " + myObj.getName()); }`. [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+- **폴더 삭제 제약**: 폴더가 비어있어야만 delete()로 삭제 가능하다는 점이 명시됨. [S1]
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — File/Create/Write/Read/Delete 4단계 챕터의 마지막 단계로, 파일 생명주기 관리를 완성한다. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+Deleting a file with success check (Java):
+```java
+File myObj = new File("filename.txt");
+if (myObj.delete()) {
+    System.out.println("Deleted the file: " + myObj.getName());
+} else {
+    System.out.println("Failed to delete the file.");
+}
+```
+
+## ✅ 검증 상태 및 신뢰도
+- **상태:** draft
+- **검증 단계:** conceptual
+- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
+- **신뢰 점수:** 0.87
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[Java Tutorial]]
+- **관련 개념:** [[Java Files Read]], [[Java Files]], [[Java IO Streams]]
+- **참조 맥락:** 파일 생명주기(생성→쓰기→읽기→삭제)의 마지막 단계 — IO Streams 챕터로 이어짐.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — Java Delete Files — https://www.w3schools.com/java/java_files_delete.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "Java Delete Files" page (Astra wiki-curation, P-Reinforce v3.1 format).