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title

Java Methods Overloading

🎯 한 줄 통찰 (One-line insight)

Method overloading is explicitly framed as the FIX for a code smell — the tutorial first shows two differently-named methods (plusMethodInt, plusMethodDouble) doing the same conceptual job, then demonstrates overloading them under one shared name (plusMethod) as the better design. [S1]

🧠 핵심 개념 (Core concepts)

Method overloading — multiple methods sharing the same name but differing in parameter number/type. [S1]
Compiler resolves by signature — Java picks the right overload based on argument types/count at the call site. [S1]
Design motivation — avoids duplicating near-identical methods with different names just to handle different types. [S1]
Rule — same name is legal only if the number and/or type of parameters differs. [S1]

📖 세부 내용 (Details)

Before overloading (bad pattern): static int plusMethodInt(int x, int y) { return x + y; } static double plusMethodDouble(double x, double y) { return x + y; }. [S1]
After overloading (good pattern): static int plusMethod(int x, int y) { return x + y; } static double plusMethod(double x, double y) { return x + y; }. [S1]
Usage: int myNum1 = plusMethod(8, 5); double myNum2 = plusMethod(4.3, 6.26); — the correct overload is chosen automatically based on argument types. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

소스에서 모순되는 정보는 발견되지 않음.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — int/double 등 타입별로 별도 메서드명을 두는 대신 오버로딩으로 통합하는 설계 개선 사례다. [S1]

💻 코드 패턴 (Code patterns)

Overloaded plusMethod for int and double (Java):

static int plusMethod(int x, int y) {
    return x + y;
}
static double plusMethod(double x, double y) {
    return x + y;
}
public static void main(String[] args) {
    int myNum1 = plusMethod(8, 5);
    double myNum2 = plusMethod(4.3, 6.26);
}

✅ 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 Return, Java Scope, Java Recursion
참조 맥락: 동일 이름의 메서드를 매개변수로 구분 — Scope/Recursion 챕터로 이어짐.

📚 출처 (Sources)

[S1] W3Schools — Java Method Overloading — https://www.w3schools.com/java/java_methods_overloading.asp

📝 변경 이력 (Change history)

2026-07-04: Initial draft synthesized from the W3Schools "Java Method Overloading" page (Astra wiki-curation, P-Reinforce v3.1 format).

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