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-class-methods
+title: "Java Class Methods"
+category: "Programming_Language"
+status: "draft"
+verification_status: "conceptual"
+canonical_id: ""
+aliases: ["자바 클래스 메서드"]
+duplicate_of: ""
+source_trust_level: "B"
+confidence_score: 0.88
+created_at: 2026-07-04
+updated_at: 2026-07-04
+review_reason: ""
+merge_history: []
+tags: ["java", "programming", "w3schools", "oop", "methods"]
+raw_sources: ["https://www.w3schools.com/java/java_class_methods.asp"]
+applied_in: []
+github_commit: ""
+---
+
+# [[Java Class Methods]]
+
+## 🎯 한 줄 통찰 (One-line insight)
+Non-static instance methods (`fullThrottle()`, `speed()` without `static`) MUST be called through an object reference (`myCar.fullThrottle()`), unlike the earlier `static void myMethod()` examples which could be called bare — the presence/absence of `static` determines whether an object is required to invoke a method. [S1]
+
+## 🧠 핵심 개념 (Core concepts)
+- **Instance method** — declared without `static`; must be called via an object (`objectName.methodName()`). [S1]
+- **Dot syntax for methods** — same `.` operator used for attributes now invokes methods on an object. [S1]
+- **Method with parameter on an object** — `myCar.speed(200);` passes an argument through the object reference. [S1]
+- **Multi-class organization** — Main.java holds the class+methods, Second.java holds `main()` that instantiates and calls them (same pattern as Classes chapter). [S1]
+
+## 📖 세부 내용 (Details)
+- Instance methods defined and called: `public void fullThrottle() { System.out.println("The car is going as fast as it can!"); } public void speed(int maxSpeed) { System.out.println("Max speed is: " + maxSpeed); } ... Main myCar = new Main(); myCar.fullThrottle(); myCar.speed(200);`. [S1]
+- Explained: object creation is required before methods can be called via dot syntax, contrasted with earlier static-method examples. [S1]
+
+## ⚖️ 모순 및 업데이트 (Contradictions & updates)
+소스에서 모순되는 정보는 발견되지 않음.
+
+## 🛠️ 적용 사례 (Applied in summary)
+현재 발견된 실제 적용 사례가 없습니다 — 자동차(Car) 객체의 fullThrottle/speed 메서드 호출이 인스턴스 메서드 활용의 대표 예시다. [S1]
+
+## 💻 코드 패턴 (Code patterns)
+Calling instance methods via an object reference (Java):
+```java
+public class Main {
+    public void fullThrottle() {
+        System.out.println("The car is going as fast as it can!");
+    }
+    public void speed(int maxSpeed) {
+        System.out.println("Max speed is: " + maxSpeed);
+    }
+    public static void main(String[] args) {
+        Main myCar = new Main();
+        myCar.fullThrottle();
+        myCar.speed(200);
+    }
+}
+```
+
+## ✅ 검증 상태 및 신뢰도
+- **상태:** draft
+- **검증 단계:** conceptual
+- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
+- **신뢰 점수:** 0.88
+- **중복 검사 결과:** 신규 생성 (New discovery)
+
+## 🔗 지식 그래프 (Knowledge Graph)
+- **상위/루트:** [[Java Tutorial]]
+- **관련 개념:** [[Java Class Attributes]], [[Java Constructors]], [[Java Methods]]
+- **참조 맥락:** 인스턴스 메서드는 객체를 통해서만 호출 가능 — 생성자 챕터로 이어짐.
+
+## 📚 출처 (Sources)
+- [S1] W3Schools — Java Class Methods — https://www.w3schools.com/java/java_class_methods.asp
+
+## 📝 변경 이력 (Change history)
+- 2026-07-04: Initial draft synthesized from the W3Schools "Java Class Methods" page (Astra wiki-curation, P-Reinforce v3.1 format).