---
id: java-methods
title: "Java Methods"
category: "Programming_Language"
status: "draft"
verification_status: "conceptual"
canonical_id: ""
aliases: ["자바 메서드"]
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", "methods"]
raw_sources: ["https://www.w3schools.com/java/java_methods.asp"]
applied_in: []
github_commit: ""
---

# [[Java Methods]]

## 🎯 한 줄 통찰 (One-line insight)
`static` on a method means it belongs to the CLASS itself, not to any object instance — a distinction the tutorial defers explaining fully until objects are introduced later, but flags immediately since every method example so far uses it. [S1]

## 🧠 핵심 개념 (Core concepts)
- **Method** — a named, reusable block of code that runs only when called; also called a function. [S1]
- **Purpose** — code reuse: define once, use many times. [S1]
- **Declaration inside a class** — `static void myMethod() { ... }`. [S1]
- **`static`** — the method belongs to the class, not an object instance (elaborated later with OOP). [S1]
- **`void`** — signals no return value. [S1]
- **Calling** — `myMethod();` — can be called repeatedly. [S1]

## 📖 세부 내용 (Details)
- Definition: `public class Main { static void myMethod() { // code } }`. [S1]
- Call and output: `static void myMethod() { System.out.println("I just got executed!"); } public static void main(String[] args) { myMethod(); }`. [S1]
- Repeated calls: calling `myMethod();` three times inside main prints the message three times. [S1]

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

## 🛠️ 적용 사례 (Applied in summary)
현재 발견된 실제 적용 사례가 없습니다 — 코드 재사용의 기본 단위이며, 파라미터/반환값/오버로딩으로 확장된다. [S1]

## 💻 코드 패턴 (Code patterns)
Basic method definition and repeated call (Java):
```java
public class Main {
    static void myMethod() {
        System.out.println("I just got executed!");
    }
    public static void main(String[] args) {
        myMethod();
        myMethod();
        myMethod();
    }
}
```

## ✅ 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 Methods Param]], [[Java Methods Return]], [[Java OOP]]
- **참조 맥락:** 코드 재사용의 기본 단위 — 파라미터/반환값 챕터로 확장.

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

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