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2026-03-01

🔌 인터페이스의 추상 메소드 (Abstract Method)
#Interface#Constants#Java#Immutable#Java-Core#OOP#Abstract Method
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2026-03-01

🔌 인터페이스의 디폴트 메소드 (Default Method)
#Interface#Constants#Java#Immutable#Java-Core#Default Method#OOP
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2026-02-28

🔌 인터페이스의 상수 필드 (Constant Field)
#Interface#Constants#Java#Immutable#Java-Core#OOP
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2026-02-26

🔌 인터페이스와 구현 클래스 선언
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2026-02-26

🔌 인터페이스 (Interface) — 역할과 목적
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2026-02-25

🔗 참조 타입 변수의 == , != 연산
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2026-02-25

🧩 JVM 메모리 사용 영역 (Runtime Data Area)
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2026-02-25

🎁 포장 클래스 (Wrapper Class)
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2026-02-24

🔧 강제 타입 변환 (Casting)
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