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Effective Java Study

πŸ’‘ μ™„μ£Όν•˜λŠ”λ° λͺ©ν‘œλ₯Ό 두고 ν¬κΈ°ν•˜μ§€ μ•ŠλŠ” 것을 λͺ©ν‘œλ‘œ ν•©λ‹ˆλ‹€

πŸ“† κΈ°κ°„

  • 일정 : 2022. 12.05 - μ•„μ΄ν…œ μ’…λ£Œ μ‹œ
  • μ›”μš”μΌ, 22μ‹œμ— Google Meet으둜 μ§„ν–‰ν•©λ‹ˆλ‹€.
  • 일정이 μžˆμ„ 경우, 미리 νŒ€μ›λ“€κ³Ό μ‘°μœ¨ν•΄λ³Ό 수 μžˆμŠ΅λ‹ˆλ‹€.
  • μ²«μ§Έμ£ΌλŠ” κ°„λ‹¨ν•œ OTλ₯Ό μ§„ν–‰ν•˜λ©°, λ§ˆμ§€λ§‰ μ£Όμ—λŠ” 총 회고λ₯Ό μ§„ν–‰ν•©λ‹ˆλ‹€.

πŸ– λͺ¨μ§‘ 인원

  • 총 5λͺ…

πŸ“œ 진행방식

  • 맀주 μ•„μ΄ν…œ 5κ°œμ”© κ³΅λΆ€ν•©λ‹ˆλ‹€
  • 각 μ•„μ΄ν…œλ“€μ„ κ³΅λΆ€ν•˜λ‹€κ°€ 이해가 λ˜μ§€ μ•Šκ±°λ‚˜ ν† λ‘ ν•  λ‚΄μš©μ΄ μžˆλ‹€λ©΄ issueλ₯Ό λ‚¨κ²¨μ£Όμ„Έμš”.
  • ν† λ‘ ν•  λ‚΄μš©μ€ μ–Έμ œλ“ μ§€ 읽어보며 , 닡변을 λ‹¬μ•„μ€λ‹ˆλ‹€.
  • 맀주 μŠ€ν„°λ”” μ‹œκ°„μ— ν•œ μ‚¬λžŒ λ‹Ή ν•œ κ°œμ”© μ•„μ΄ν…œ λ°œν‘œλ₯Ό μ§„ν–‰ν•©λ‹ˆλ‹€.
  • μŠ€ν„°λ”” μ „ μ£Ό κΈˆμš”μΌκΉŒμ§€ 일정 λ³€κ²½ ν—ˆμš©(일정 쑰율 μ–΄λ €μšΈ μ‹œ λΆˆμ°Έν•œ 경우 벌금x)
  • κΈˆμš”μΌ 이후 ex.당일 λͺΈμ΄ μ•„ν”„κ±°λ‚˜, κΈ‰ν•œ 일정은 면제

πŸ“šμ•„μ΄ν…œ

  • μ•„μ΄ν…œ κ°œμˆ˜λŠ” μ „ λ―ΈνŒ…μ—μ„œ 5-10개 μ‚¬μ΄μ˜ 개수λ₯Ό μœ λ™μ μœΌλ‘œ μ •ν•©λ‹ˆλ‹€.
  • λ°œν‘œ μ•„μ΄ν…œ μ„ μ • 방식은 λ―ΈνŒ… 이전 ν† μš”μΌ 23:59κΉŒμ§€ μ„ μ°©μˆœμœΌλ‘œ μ •ν•΄μ„œ slack에 μ˜¬λ €μ£Όμ„Έμš”

πŸ–₯ λ°œν‘œ

  • 맀주 ν•œ μ‚¬λžŒλ‹Ή ν•œ 개의 μ•„μ΄ν…œμ„ μ€€λΉ„ν•˜μ—¬ λ°œν‘œλ₯Ό μ§„ν–‰ν•©λ‹ˆλ‹€.
  • λ°œν‘œ μžλ£ŒλŠ” λ°œν‘œκ°€ λλ‚œ λ‹€μŒλ‚ κΉŒμ§€ PR둜 μ˜¬λ €μ£Όμ„Έμš”
  • λ°œν‘œμžλ£ŒλŠ” notion,λΈ”λ‘œκ·Έ,PPTλ“± 자유둭게 올렀 μ£Όμ‹œλ©΄ λ©λ‹ˆλ‹€.
  • λ°œν‘œ μ‹œκ°„μ€ 10λΆ„ λ‚΄λ‘œ μ€€λΉ„ν•΄μ£Όμ„Έμš”. (λ°œν‘œν•  λ•Œ λ°˜λ“œμ‹œ ν•΄λ‹Ή μ•„μ΄ν…œμ˜ λͺ¨λ“  λ‚΄μš©μ„ 담을 ν•„μš”λŠ” μ—†μŠ΅λ‹ˆλ‹€.

πŸ“ 컀밋 μ»¨λ²€μ…˜

  • 졜초 λ°œν‘œ 자료 μ—…λ‘œλ“œ

docs : [item번호] 제λͺ©
ex) docs : item1 μƒμ„±μž λŒ€μ‹  정적 νŒ©ν„°λ¦¬ λ©”μ„œλ“œλ₯Ό κ³ λ €ν•˜λΌ

  • μ—…λ‘œλ“œ ν›„ μˆ˜μ • 사항

refactor : μ½”λ“œ or λ¬Έμ„œ μˆ˜μ • λΆ€λΆ„
ex) refactor : μƒμ„±μž λ©”μ„œλ“œ μˆ˜μ •

πŸ‘¨β€πŸ‘©β€πŸ‘§β€πŸ‘¦ 회고

  • 1주일 λ™μ•ˆ 책을 μ½μœΌλ©΄μ„œ λŠλ‚€ 점, λ°œν‘œλ₯Ό 보고 λŠλ‚€ 점 듀을 자유둭게 이야기 ν•΄μ£Όμ‹œλ©΄ λ©λ‹ˆλ‹€.
  • 자유둭게 각자 ν•˜κ³  싢은 말을 ν•˜λ©΄ λ˜λ‹ˆ λΆ€λ‹΄ 가지싀 ν•„μš”λŠ” μ—†μŠ΅λ‹ˆλ‹€.

πŸ’° 보증금 및 벌금

  • 보증금 3λ§Œμ›μ„ 첫 μ‹œμž‘ λ•Œ μž…κΈˆν•©λ‹ˆλ‹€.(카카였 뱅크 λͺ¨μž„톡μž₯ μ‚¬μš©)
  • λ²ŒκΈˆμ€ 3000μ›μž…λ‹ˆλ‹€.
  • λ§ˆμ§€λ§‰ λͺ¨μž„μ—μ„œ 남은 κΈˆμ•‘μ— λŒ€ν•΄ ν™˜κΈ‰μ„ λ°›λŠ”λ‹€.
  • λͺ¨μΈ λ²ŒκΈˆμ€ λ‚˜μ€‘μ— μ˜€ν”„λΌμΈ λͺ¨μž„이 μžˆμ„ μ‹œ μ‚¬μš© or nλΉ΅
  • 쀑도 ν•˜μ°¨ν•˜μ‹  뢄은 λ³΄μ¦κΈˆμ„ λŒλ €μ£Όμ§€ μ•ŠμŠ΅λ‹ˆλ‹€.

πŸ’° 벌금

  • 자료 git에 λ°œν‘œ μ£Ό μˆ˜μš”μΌκΉŒμ§€ μ•ˆλ‚¨κΈΈ μ‹œ 벌금 3000원 차감
  • κΈˆμš”μΌ 이후 일정 λ³€κ²½ λ˜λŠ” 뢈참 μ‹œ 3000원 차감

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study-history's Issues

item14 : Comparable을 κ΅¬ν˜„ν• μ§€ κ³ λ €ν•˜λΌ

item14 : Comparable을 κ΅¬ν˜„ν• μ§€ κ³ λ €ν•˜λΌμ˜ Pg 89μ—μ„œ 질문이 μƒκ²ΌμŠ΅λ‹ˆλ‹€.!

쀑간쯀에 λ·° λ©”μ„œλ“œλ₯Ό μΆ”κ°€ν•˜λ©΄μ„œ 'μš°νšŒν•˜λŠ” 법'에 λŒ€ν•˜μ—¬ λͺ…ν™•νžˆλŠ” 이해가 μ•ˆκ°€κ³  μžˆμŠ΅λ‹ˆλ‹€.
κ·Έλž˜μ„œ ꡬ글링을 톡해 이해λ₯Ό 더 해보렀고 ν–ˆμœΌλ‚˜ 더 ν—·κ°ˆλ¦¬λ„€μ—¬.

  • λ·° λ©”μ„œλ“œλ₯Ό μ‚¬μš©ν•˜λ©΄ λ°”κΉ₯ ν΄λž˜μŠ€μ—μ„œ μš°λ¦¬κ°€ μ›ν•˜λŠ” compareTo λ©”μ„œλ“œλ₯Ό κ΅¬ν˜„ν•  수 μžˆλ‹€λΌκ³  ν•˜λŠ”λ° , μ˜ˆμ‹œμ˜ compareTo λ©”μ„œλ“œλ₯Ό 보면 λ·° λ©”μ„œλ“œμΈ asApple이 μ–΄λ–»κ²Œ μ“°μ΄λŠ”μ§€ λͺ¨λ₯΄κ² λ”λΌκ³ μš”..!
    μ˜ˆμ‹œ μ½”λ“œλ₯Ό κ΅¬κΈ€λ§ν•΄μ„œ κ°€μ Έμ™€λ΄€μŠ΅λ‹ˆλ‹€.πŸ˜‚μ˜ˆμ‹œ μ½”λ“œ 잘λͺ»μΈμ§€..흠 ν•¨κ»˜ 보며 νŒŒμ•…ν•˜λ©΄ 쒋을 것 κ°™μŠ΅λ‹ˆλ‹€!!

μ˜ˆμ‹œ κ°€μ Έμ˜¨ λΈ”λ‘œκ·Έμž…λ‹ˆλ‹Ή
https://hyeon9mak.github.io/Effective-Java-item14/

public class Apple implements Comparable<Apple> {
    private int price;
    private int weight;

    public Apple(int price, int weight) {
        this.price = price;
        this.weight = weight;
    }

    @Override
    public int compareTo(Apple apple) {
        int result = Integer.compare(price, apple.price);
        if (result == 0) {
            return Integer.compare(weight, apple.weight);
        }
        return result;
    }
}

// View λ©”μ„œλ“œ(asApple)λ₯Ό 제곡
class GreenApple implements Comparable<GreenApple> {
    private Apple apple;
    private int green;

    public GreenApple(Apple apple, int green) {
        this.apple = apple;
        this.green = green;
    }

    public Apple asApple() {
        return apple;
    }

    @Override
    public int compareTo(GreenApple greenApple) {
        int result = apple.compareTo(greenApple.apple);
        if (result == 0) {
            return Integer.compare(green, greenApple.apple);
        }
        return result;
    }
}

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