---
id: java-statements
title: "Java Statements"
category: "Programming_Language"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["자바 문장"]
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", "statements"]
raw_sources: ["https://www.w3schools.com/java/java_statements.asp"]
applied_in: []
github_commit: ""
---

# [[Java Statements]]

## 🎯 한 줄 통찰 (One-line insight)
Unlike Python's optional semicolons, a Java statement MUST end with `;` — omitting it is a hard compile error (`error: ';' expected`), not just a style violation. [S1]

## 🧠 핵심 개념 (Core concepts)
- **Statement** — a programming instruction executed by the computer. [S1]
- **Semicolon required** — every Java statement must end with `;`. [S1]
- **Missing semicolon = compile error** — `error: ';' expected`. [S1]
- **Sequential execution** — multiple statements execute one by one in written order. [S1]

## 📖 세부 내용 (Details)
- Basic statement: `System.out.println("Java is fun!");`. [S1]
- Missing semicolon error: `System.out.println("Java is fun!")` → `error: ';' expected`. [S1]
- Sequential statements: three `System.out.println(...)` calls execute top to bottom. [S1]

## ⚖️ 모순 및 업데이트 (Contradictions & updates)
소스에서 모순되는 정보는 발견되지 않음.

## 🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — Python과 달리 세미콜론이 선택이 아닌 필수라는 점이 Java 문법 전체의 기초 규칙이다. [S1]

## 💻 코드 패턴 (Code patterns)
Sequential statements requiring semicolons (Java):
```java
System.out.println("Hello World!");
System.out.println("Have a good day!");
System.out.println("Learning Java is fun!");
```

## ✅ 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 Syntax]], [[Java Output]]
- **참조 맥락:** 세미콜론이 필수라는 Java 문장 종료 규칙.

## 📚 출처 (Sources)
- [S1] W3Schools — Java Statements — https://www.w3schools.com/java/java_statements.asp

## 📝 변경 이력 (Change history)
- 2026-07-04: Initial draft synthesized from the W3Schools "Java Statements" page (Astra wiki-curation, P-Reinforce v3.1 format).