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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-else-if Java Else If Programming_Language draft conceptual
else if statement
자바 else if
B 0.9 2026-07-04 2026-07-04
java
programming
w3schools
conditions
else-if
https://www.w3schools.com/java/java_conditions_elseif.asp

Java Else If

🎯 한 줄 통찰 (One-line insight)

An else if chain short-circuits at the first true condition — later conditions are never even evaluated, so ordering matters (e.g., a time < 18 check placed before a time < 12 check would incorrectly swallow morning cases). [S1]

🧠 핵심 개념 (Core concepts)

  • else if — tests a new condition only if the preceding if/else-if was false. [S1]
  • Syntaxif (condition1) {...} else if (condition2) {...} else {...}. [S1]
  • Chain evaluation — conditions are checked top-to-bottom; the first true one wins and the rest are skipped. [S1]

📖 세부 내용 (Details)

  • Weather example: int weather = 2; if (weather == 1) {...} else if (weather == 2) { System.out.println("Wear sunglasses."); } else {...} // Outputs "Wear sunglasses.". [S1]
  • Time-of-day chain: int time = 16; if (time < 12) {...} else if (time < 18) { System.out.println("Good day."); } else {...} // Outputs "Good day.". [S1]
  • Falls through to final else: int time = 22; with the same chain outputs "Good evening." since neither earlier condition matches. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

소스에서 모순되는 정보는 발견되지 않음.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — 셋 이상의 분기가 필요한 다중 조건 판단(시간대, 온도, 등급 등)의 표준 패턴이다. [S1]

💻 코드 패턴 (Code patterns)

Three-way branch chain (Java):

int time = 16;
if (time < 12) {
    System.out.println("Good morning.");
} else if (time < 18) {
    System.out.println("Good day.");
} else {
    System.out.println("Good evening.");
}

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 Else If" page (Astra wiki-curation, P-Reinforce v3.1 format).