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Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-11 11:05:56 +09:00

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id, title, category, status, verification_status, canonical_id, aliases, duplicate_of, source_trust_level, confidence_score, created_at, updated_at, review_reason, merge_history, tags, raw_sources, applied_in, github_commit
id title category status verification_status canonical_id aliases duplicate_of source_trust_level confidence_score created_at updated_at review_reason merge_history tags raw_sources applied_in github_commit
java-modifiers Java Modifiers Programming_Language draft conceptual
access modifiers
자바 접근 제어자
B 0.9 2026-07-04 2026-07-04
java
programming
w3schools
oop
modifiers
access-control
https://www.w3schools.com/java/java_modifiers.asp

Java Modifiers

🎯 한 줄 통찰 (One-line insight)

Classes only get two access modifier choices (public/default), while attributes/methods/constructors get four (public/private/default/protected) — the extra granularity for members exists because access control needs to operate at a finer level than whole-class visibility. [S1]

🧠 핵심 개념 (Core concepts)

  • Access modifier — controls the access level of classes, attributes, methods, constructors. [S1]
  • For classespublic (accessible by any class) or default (package-only, used when no modifier is specified). [S1]
  • For members (attributes/methods/constructors)public, private (class-only), default (package-only), protected (package + subclasses). [S1]
  • Real-life analogy — public = public park (anyone enters); private = house key (only you). [S1]

📖 세부 내용 (Details)

  • Public vs. private: class Person { public String name = "John"; private int age = 30; } ... p.name // works; p.age // Error: age has private access in Person. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

소스에서 모순되는 정보는 발견되지 않음.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — public/private 분리는 캡슐화(Encapsulation) 챕터의 직접적 기반이다. [S1]

💻 코드 패턴 (Code patterns)

Public vs. private attribute access (Java):

class Person {
    public String name = "John"; // accessible everywhere
    private int age = 30;        // only accessible inside this class
}

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)

📚 출처 (Sources)

📝 변경 이력 (Change history)

  • 2026-07-04: Initial draft synthesized from the W3Schools "Java Modifiers" page (Astra wiki-curation, P-Reinforce v3.1 format).