배열 복사

• 깊은 복사, 얕은 복사
  https://zzang9ha.tistory.com/372

• 자바의 call by value, call by reference에 대하여
  https://devlog-wjdrbs96.tistory.com/44

• 자바의 call by value
  https://loosie.tistory.com/486

• System.identityHashCode(str)
  https://codechacha.com/ko/java-system-identityhashcode/

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정처기 문제

https://roadtofree.tistory.com/entry/%EC%A0%95%EB%B3%B4%EC%B2%98%EB%A6%AC%EA%B8%B0%EC%82%AC-%EC%8B%A4%EA%B8%B0-%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D-%EB%AC%B8%EC%A0%9C-Java-%EA%B8%B0%EC%B6%9C-%ED%92%80%EC%9D%B4-%EB%AA%A8%EC%9D%8C

https://roadtofree.tistory.com/entry/%EC%A0%95%EB%B3%B4%EC%B2%98%EB%A6%AC%EA%B8%B0%EC%82%AC-%EC%8B%A4%EA%B8%B0-%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%B0%8D-%EB%AC%B8%EC%A0%9C-Java-%EA%B8%B0%EC%B6%9C-%ED%92%80%EC%9D%B4-%EB%AA%A8%EC%9D%8C

문제

https://codingdojang.com/scode/711?answer_mode=hide

https://codingdojang.com/scode/598?answer_mode=hide

https://codingdojang.com/scode/556#answer-filter-area

https://codingdojang.com/scode/480?answer_mode=hide

https://codingdojang.com/scode/461?answer_mode=hide

https://codingdojang.com/scode/480

객체 지향..아직

이클립스 단축키

• 안 쓰는 거 삭제, 없는 거 import 자동으로 넣어주는 거.
  ctrl + shift + O
  비슷한 이름이 떴을 때만 잘 넣으면 된다.
• ctrl + shift + L

• Java... Garbage Collection
  https://mangkyu.tistory.com/118

String에 대하여

• Java String이 왜 불변인지
  https://readystory.tistory.com/139

• String 얘기
  https://ililil9482.tistory.com/155

• C, C++ 빼고 String은 거의 불변이다!
  https://velog.io/@skyepodium/%ED%8C%8C%EC%9D%B4%EC%8D%AC-%EB%AC%B8%EC%9E%90%EC%97%B4%EC%9D%80-%EB%B6%88%EB%B3%80%EA%B0%9D%EC%B2%B4%EC%9E%85%EB%8B%88%EB%8B%A4