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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
java-operators-precedence Java Operators Precedence Programming_Language draft conceptual
order of operations
자바 연산자 우선순위
B 0.9 2026-07-04 2026-07-04
java
programming
w3schools
operators
precedence
https://www.w3schools.com/java/java_operators_precedence.asp

Java Operators Precedence

🎯 한 줄 통찰 (One-line insight)

Java's precedence order runs parentheses → multiplicative → additive → comparison → equality → logical AND → logical OR → assignment, and left-to-right evaluation applies when operators share the same precedence tier. [S1]

🧠 핵심 개념 (Core concepts)

  • Precedence order (high → low)()*///%+/- → comparisons (>,<,>=,<=) → equality (==,!=) → &&||=. [S1]
  • Parentheses always win — used to force a specific evaluation order. [S1]
  • Left-to-right for equal precedence — e.g. subtraction and addition evaluate left to right without parentheses. [S1]

📖 세부 내용 (Details)

  • Multiplication before addition: int result1 = 2 + 3 * 4; // 14 vs. int result2 = (2 + 3) * 4; // 20. [S1]
  • Left-to-right on equal precedence: int result1 = 10 - 2 + 5; // (10-2)+5 = 13 vs. int result2 = 10 - (2 + 5); // 10-7 = 3. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

소스에서 모순되는 정보는 발견되지 않음.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — 복합 표현식의 평가 순서를 예측해야 할 때 항상 참조하는 표다. [S1]

💻 코드 패턴 (Code patterns)

Parentheses override default precedence (Java):

int result1 = 2 + 3 * 4;   // 14 (multiplication first)
int result2 = (2 + 3) * 4; // 20 (parentheses force addition first)

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 Operator Precedence" page (Astra wiki-curation, P-Reinforce v3.1 format).