---
id: java-output
title: "Java Output"
category: "Programming_Language"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["println()", "print()", "자바 출력"]
duplicate_of: ""
source_trust_level: "B"
confidence_score: 0.9
created_at: 2026-07-04
updated_at: 2026-07-04
review_reason: ""
merge_history: []
tags: ["java", "programming", "w3schools", "output", "println"]
raw_sources: ["https://www.w3schools.com/java/java_output.asp"]
applied_in: []
github_commit: ""
---

# [[Java Output]]

## 🎯 한 줄 통찰 (One-line insight)
`println()` and `print()` differ only in whether a newline follows — but the tutorial deliberately sticks to `println()` throughout for readability, treating `print()` as a rarely-needed variant. [S1]

## 🧠 핵심 개념 (Core concepts)
- **`println()`** — prints text/values, adding a newline after each call. [S1]
- **Double quotes required** — text must be wrapped in `""`; omitting them is a compile error. [S1]
- **`print()`** — same as `println()` but does NOT add a trailing newline. [S1]

## 📖 세부 내용 (Details)
- Multiple println calls: `System.out.println("Hello World!"); System.out.println("I am learning Java.");` — each on its own line. [S1]
- print() without newline: `System.out.print("Hello World! "); System.out.print("I will print on the same line.");`. [S1]

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

## 🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — 이 튜토리얼 전체에서 println()만 일관되게 사용한다고 명시됨. [S1]

## 💻 코드 패턴 (Code patterns)
print() without a trailing newline (Java):
```java
System.out.print("Hello World! ");
System.out.print("I will print on the same line.");
```

## ✅ 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)
- **상위/루트:** [[Java Tutorial]]
- **관련 개념:** [[Java Print Numbers]], [[Java Strings]]
- **참조 맥락:** 텍스트 출력의 기본 — 숫자 출력은 다음 챕터로 이어진다.

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

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