---
id: java-print-numbers
title: "Java Print Numbers"
category: "Programming_Language"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["자바 숫자 출력"]
duplicate_of: ""
source_trust_level: "B"
confidence_score: 0.87
created_at: 2026-07-04
updated_at: 2026-07-04
review_reason: ""
merge_history: []
tags: ["java", "programming", "w3schools", "output", "numbers"]
raw_sources: ["https://www.w3schools.com/java/java_output_numbers.asp"]
applied_in: []
github_commit: ""
---

# [[Java Print Numbers]]

## 🎯 한 줄 통찰 (One-line insight)
Numbers passed to println() are never quoted, and arithmetic expressions can be evaluated directly inside the call — the same convention as Python's print(). [S1]

## 🧠 핵심 개념 (Core concepts)
- **Numbers unquoted** — `System.out.println(3);` not `println("3")`. [S1]
- **Inline math** — `System.out.println(3 + 3);` evaluates before printing. [S1]

## 📖 세부 내용 (Details)
- Plain numbers: `System.out.println(3); System.out.println(358);`. [S1]
- Arithmetic: `System.out.println(3 + 3); System.out.println(2 * 5);`. [S1]

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

## 🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — Java Operators Arithmetic 챕터에서 이 연산이 전체 연산자 집합으로 확장된다. [S1]

## 💻 코드 패턴 (Code patterns)
Inline math in println (Java):
```java
System.out.println(3 + 3);  // 6
```

## ✅ 검증 상태 및 신뢰도
- **상태:** draft
- **검증 단계:** conceptual
- **출처 신뢰도:** B (W3Schools — widely used educational reference, not a primary standards body)
- **신뢰 점수:** 0.87
- **중복 검사 결과:** 신규 생성 (New discovery)

## 🔗 지식 그래프 (Knowledge Graph)
- **상위/루트:** [[Java Tutorial]]
- **관련 개념:** [[Java Output]], [[Java Operators Arithmetic]]
- **참조 맥락:** 숫자 출력의 기초 — Operators Arithmetic 챕터로 확장.

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

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