Java

1.JVM 이란 무엇인가(feat. JRE, JDK)

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2.Collections Framework (feat.Map은 Collection 인가?)

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3.GC(Garbage Collector)

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4.SOLID 원칙

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5.String literal ("") 과 new String("") 차이

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6.추상클래스란?

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7.인터페이스란?

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8.Interface (feat. default method, static method)

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9.객체지향 프로그래밍 대체 뭔데

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10.String equals() 와 == 의 차이, String Pool

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11.JAVA 변수 구분

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