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[Java] Reference Variable Casting
참조변수의 형변환 상속관계에 놓여있다면 참조변수 간에도 형변환이 가능하다. 만약 Apple과 Banana가 Fruits class를 상속하고 있다면 Apple→Fruits, Fruits→Banana로 형변환 하는 것이 가능하다. ※ 단, Apple과 Banana 사이의
2021년 1월 27일
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