Java, OOP

1.Java basic

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2.내부 클래스

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3.Enum

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4.초기화 블록, 정적 팩토리 메서드

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5.합성(composition)

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6.객체지향

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7.OOP(Object Oriented Programming)

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8.LSP, OCP

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9.디자인 패턴

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10.디자인패턴: 싱글톤

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11.디자인 패턴: factory method pattern, abstract factory method pattern

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12.디자인 패턴 : Decorator 패턴

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13.디자인패턴: proxy 패턴, facade 패턴

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14.디자인 패턴: Command 패턴, Adapter 패턴

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15.디자인 패턴: Strategy 패턴, State 패턴

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16.디자인패턴: Template method 패턴

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17.리플렉션

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18.Java 17

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19.가비지 컬렉션 - G1 GC

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20.Java 우선순위 큐

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21.제네릭 메서드

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22.Lamda & Stream

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23.변수 초기화

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24.synchronized

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25.Synchronized Block & 동기화 순서

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26.Java - Thread

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27.stream flatmap

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