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ν˜„μž¬κΉŒμ§€ 10개의 주제λ₯Ό 닀루고 μžˆμŠ΅λ‹ˆλ‹€.

Algorithm/CS (25)

결합도와 μ‘μ§‘λ„λŠ” λ¬΄μ—‡μΌκΉŒ?
μ•”ν˜Έ 기법: μΉ˜ν™˜ μ•”ν˜Έ, μ „μΉ˜ μ•”ν˜Έ, 블둝 μ•”ν˜Έ, 슀트림 μ•”ν˜Έ
μ „λ‹¬μΈμž(argument)와 λ§€κ°œλ³€μˆ˜(parameter)
ν”„λ‘œμ„ΈμŠ€μ™€ μŠ€λ ˆλ“œ 차이
LeetCode 344. Reverse String
이진 탐색 트리: μžλ°” μ–Έμ–΄λ‘œ κ΅¬ν˜„ν•˜κΈ°
이진 탐색 트리: 이둠과 μ†Œκ°œ
μ˜΅μ €λ²„ νŒ¨ν„΄(Observer Pattern)
LeetCode 2. Add Two Numbers
LeetCode 3. Longest Substring Without Repeating Characters
ν•¨μˆ˜ν˜• ν”„λ‘œκ·Έλž˜λ°κ³Ό 객체지ν–₯ ν”„λ‘œκ·Έλž˜λ°
μ»΄ν“¨ν„°λŠ” μ™œ 2μ§„μˆ˜λ₯Ό 기반으둜 ν• κΉŒ?
μ „λž΅ νŒ¨ν„΄(Strategy Pattern)
μ—λΌν† μŠ€ν…Œλ„€μŠ€μ˜ 체둜 λΉ λ₯΄κ²Œ μ†Œμˆ˜ κ΅¬ν•˜κΈ°
싱글톀 νŒ¨ν„΄(Singleton Pattern)
νŽΈμ§‘κ±°λ¦¬ μ•Œκ³ λ¦¬μ¦˜ Levenshtein Distance(Edit Distance Algorithm)
μ‹œκ°„λ³΅μž‘λ„μ™€ κ³΅κ°„λ³΅μž‘λ„(Time Complexity Space Complexity)
LeetCode 412. Fizz Buzz
LeetCode 292. Nim Game
λΉ… μ—”λ””μ•ˆκ³Ό 리틀 μ—”λ””μ•ˆ(Big Endian & Little Endian)
LeetCode 1. Two Sum
선택 μ •λ ¬(Selection Sort)
합병 μ •λ ¬(Merge Sort)
퀡 μ •λ ¬(Quick Sort)
μŠ€νƒμ„ μ΄μš©ν•œ κ΄„ν˜Έ 짝 검사(Java μ½”λ“œ)

Java/Kotlin (119)

JDK 25 LTS 릴리즈 λ…ΈνŠΈ 정리: μ£Όμš” 변경사항 ν•œλˆˆμ— 보기
μ½”ν‹€λ¦° μŠ€μ½”ν”„ ν•¨μˆ˜ 비ꡐ: let, run, with, apply, also
μ½”ν‹€λ¦° μ˜ˆμ™Έ μ²˜λ¦¬μ™€ 코루틴 기반 μž₯μ•  λŒ€μ‘
μ½”ν‹€λ¦° 코루틴 κ°œλ…κ³Ό μ‹€μ „ ν™œμš©
μ½”ν‹€λ¦° 널 μ•ˆμ •μ„±κ³Ό μ»¬λ ‰μ…˜, ν•¨μˆ˜ν˜• ν”„λ‘œκ·Έλž˜λ°
μ½”ν‹€λ¦° 클래슀 섀계와 νƒ€μž… μ‹œμŠ€ν…œ ν™œμš©
μ½”ν‹€λ¦° 기초 문법 κ°€μ΄λ“œ
μžλ°” 21 LTS μΆœμ‹œ! 무엇이 λ°”λ€Œμ—ˆμ„κΉŒ?
μžλ°” sealed class vs abstract class vs interface: μ–Έμ œ 무엇을 써야 ν• κΉŒ
μžλ°”μ—μ„œ λ‚œμˆ˜λ₯Ό λ§Œλ“œλŠ” 방법과 μ£Όμ˜ν•  점
jar 파일둜 μ‹€ν–‰ν•  λ•Œ FileNotFoundException
μžλ°” ThreadLocal: μ‚¬μš©λ²•κ³Ό μ£Όμ˜μ‚¬ν•­
μžλ°” 17의 μƒˆλ‘œμš΄ κΈ°λŠ₯λ“€, 3λ…„ λ§Œμ— LTS 버전 릴리즈!
μžλ°”μ˜ effectively final
μžλ°” BigDecimal: μ •ν™•ν•œ μ‹€μˆ˜μ˜ ν‘œν˜„κ³Ό 뢀동 μ†Œμˆ˜μ 
μžλ°” Optional: 5. Optional 톺아보기
μžλ°” Optional: 4. Optional 쒅단 처리 λ©”μ„œλ“œ
μžλ°” Optional: 3. Optional 쀑간 처리 λ©”μ„œλ“œ
μžλ°” Optional: 2. Optional μ†Œκ°œ
μžλ°” Optional: 1. null은 무엇인가?
μžλ°” BigInteger: 맀우 큰 μ •μˆ˜ ν‘œν˜„
μžλ°” μ•”ν˜Έν™”μ™€ λ³΅ν˜Έν™”
μžλ°”μ—μ„œ μ½”λ“œ μ‹€ν–‰ μ‹œκ°„μ„ μΈ‘μ •ν•˜λŠ” 방법
μžλ°” 14 λ²„μ „μ—μ„œλŠ” μ–΄λ–€ μƒˆλ‘œμš΄ κΈ°λŠ₯이 μΆ”κ°€λμ„κΉŒ?
Java Scripting API: GraalVM μ μš©ν•΄λ³΄κΈ°
Java Scripting API: 바인딩과 슀크립트 μ»¨ν…μŠ€νŠΈ 그리고 μ‹€ν–‰ μ„±λŠ₯ κ°œμ„ 
Java Scripting API: μžλ°”μ—μ„œ μžλ°”μŠ€ν¬λ¦½νŠΈμ˜ ν•¨μˆ˜λ₯Ό ν˜ΈμΆœν•  수 μžˆμ„κΉŒ?
JSON Schema: μžλ°” μ½”λ“œλ‘œ Validator κ΅¬ν˜„
μžλ°” String, StringBuilder 그리고 StringBuffer μ„±λŠ₯ 차이 비ꡐ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 11. equalsλ₯Ό μž¬μ •μ˜ν•˜λ €κ±°λ“  hashCode도 μž¬μ •μ˜ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 76. κ°€λŠ₯ν•œ ν•œ μ‹€νŒ¨ μ›μžμ μœΌλ‘œ λ§Œλ“€λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 23. νƒœκ·Έ 달린 ν΄λž˜μŠ€λ³΄λ‹€λŠ” 클래슀 계측ꡬ쑰λ₯Ό ν™œμš©ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 24. 멀버 ν΄λž˜μŠ€λŠ” λ˜λ„λ‘ static으둜 λ§Œλ“€λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 15. ν΄λž˜μŠ€μ™€ λ©€λ²„μ˜ μ ‘κ·Ό κΆŒν•œμ„ μ΅œμ†Œν™”ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 86. Serializable을 κ΅¬ν˜„ν• μ§€λŠ” μ‹ μ€‘νžˆ κ²°μ •ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 89. μΈμŠ€ν„΄μŠ€ 수λ₯Ό ν†΅μ œν•΄μ•Ό ν•œλ‹€λ©΄ readResolveλ³΄λ‹€λŠ” μ—΄κ±° νƒ€μž…μ„ μ‚¬μš©ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 90. μ§λ ¬ν™”λœ μΈμŠ€ν„΄μŠ€ λŒ€μ‹  직렬화 ν”„λ‘μ‹œ μ‚¬μš©μ„ κ²€ν† ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 88. readObject λ©”μ„œλ“œλŠ” λ°©μ–΄μ μœΌλ‘œ μž‘μ„±ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 87. μ»€μŠ€ν…€ 직렬화 ν˜•νƒœλ₯Ό 고렀해보라
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 85. μžλ°” μ§λ ¬ν™”μ˜ λŒ€μ•ˆμ„ 찾으라
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] 12μž₯. 직렬화
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 81. wait와 notifyλ³΄λ‹€λŠ” λ™μ‹œμ„± μœ ν‹Έλ¦¬ν‹°λ₯Ό μ• μš©ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 80. μŠ€λ ˆλ“œλ³΄λ‹€λŠ” μ‹€ν–‰μž, νƒœμŠ€ν¬, μŠ€νŠΈλ¦Όμ„ μ• μš©ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 79. κ³Όλ„ν•œ λ™κΈ°ν™”λŠ” ν”Όν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] 11μž₯. λ™μ‹œμ„±
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 78. 곡유 쀑인 κ°€λ³€ λ°μ΄ν„°λŠ” 동기화해 μ‚¬μš©ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] 10μž₯. μ˜ˆμ™Έ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 68. 일반적으둜 ν†΅μš©λ˜λŠ” λͺ…λͺ… κ·œμΉ™μ„ λ”°λ₯΄λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 62. λ‹€λ₯Έ νƒ€μž…μ΄ μ μ ˆν•˜λ‹€λ©΄ λ¬Έμžμ—΄ μ‚¬μš©μ„ ν”Όν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] 9μž₯. 일반적인 ν”„λ‘œκ·Έλž˜λ° 원칙
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] 8μž₯. λ©”μ„œλ“œ
μžλ°” 직렬화: readResolve와 writeReplace
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 44. ν‘œμ€€ ν•¨μˆ˜ν˜• μΈν„°νŽ˜μ΄μŠ€λ₯Ό μ‚¬μš©ν•˜λΌ
μžλ°” 직렬화: writeObject와 readObject
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] 7μž₯. λžŒλ‹€μ™€ 슀트림
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 39. λͺ…λͺ… νŒ¨ν„΄λ³΄λ‹€ μ• λ„ˆν…Œμ΄μ…˜μ„ μ‚¬μš©ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] 6μž₯. μ—΄κ±° νƒ€μž…κ³Ό μ• λ„ˆν…Œμ΄μ…˜
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] 5μž₯. μ œλ„€λ¦­
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] 4μž₯. ν΄λž˜μŠ€μ™€ μΈν„°νŽ˜μ΄μŠ€
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] 3μž₯. λͺ¨λ“  객체의 곡톡 λ©”μ„œλ“œ
μžλ°” map λ©”μ„œλ“œμ™€ flatMap λ©”μ„œλ“œμ˜ 차이
μžλ°” 직렬화: μžλ°” 직렬화λ₯Ό μ‚¬μš©ν•  λ•Œ κ³ λ―Όν•˜κ³  μ£Όμ˜ν•  점
jEnv둜 μ—¬λŸ¬ λ²„μ „μ˜ Java μ‚¬μš©ν•˜κΈ°(JDK 버전 관리)
ValidationEventHandlerλ₯Ό μ΄μš©ν•˜μ—¬ JAXB νŒŒμ‹± μ—λŸ¬ νƒμ§€ν•˜κΈ°
JAXB marshal, unmarshal(λ§ˆμƒ¬, μ–Έλ§ˆμƒ¬)
μžλ°” μ˜ˆμ™Έ ꡬ뢄: Checked Exception, Unchecked Exception
μžλ°” μœ λ£Œν™”? OpenJDK와 Oracle JDK 차이
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] 2μž₯. 객체 생성과 파괴
μžλ°” 슀트림 정리: 5. μŠ€νŠΈλ¦Όμ„ μ‚¬μš©ν•  λ•Œ μ£Όμ˜ν•  점
μžλ°” 슀트림 정리: 4. μžλ°” 슀트림 예제
μžλ°” 슀트림 정리: 3. 슀트림 κ²°κ³Ό κ΅¬ν•˜κΈ°
μžλ°” 슀트림 정리: 2. 슀트림의 쀑간 μ—°μ‚°
μžλ°” 슀트림 정리: 1. API μ†Œκ°œμ™€ 슀트림 생성 μ—°μ‚°
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 17. λ³€κ²½ κ°€λŠ₯성을 μ΅œμ†Œν™”ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 82. μŠ€λ ˆλ“œ μ•ˆμ „μ„± μˆ˜μ€€μ„ λ¬Έμ„œν™”ν•˜λΌ
μžλ°”μ˜ final ν‚€μ›Œλ“œ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 74. λ©”μ„œλ“œκ°€ λ˜μ§€λŠ” λͺ¨λ“  μ˜ˆμ™Έλ₯Ό λ¬Έμ„œν™”ν•˜λΌ
μžλ°”μ˜ 숫자 ν‘œν˜„κ³Ό μ–Έλ”μŠ€μ½”μ–΄(_)
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 66. λ„€μ΄ν‹°λΈŒ λ©”μ„œλ“œλŠ” μ‹ μ€‘νžˆ μ‚¬μš©ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 58. 전톡적인 for λ¬Έλ³΄λ‹€λŠ” for-each 문을 μ‚¬μš©ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 8. FINALIZER와 CLEANER μ‚¬μš©μ„ ν”Όν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 31. ν•œμ •μ  μ™€μΌλ“œμΉ΄λ“œλ₯Ό μ‚¬μš©ν•΄ API μœ μ—°μ„±μ„ 높이라
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 50. μ μ‹œμ— 방어적 볡사본을 λ§Œλ“€λΌ
μžλ°” 직렬화: SerialVersionUIDλŠ” λ¬΄μ—‡μΌκΉŒ?
μžλ°” 직렬화: 직렬화(Serialize)λž€ λ¬΄μ—‡μΌκΉŒ?
μžλ°”μ—μ„œ μ œλ„€λ¦­μ˜ μž₯점과 μ‚¬μš©ν•  λ•Œ μ£Όμ˜ν•  점
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 42. 읡λͺ… ν΄λž˜μŠ€λ³΄λ‹€λŠ” λžŒλ‹€λ₯Ό μ‚¬μš©ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 4. μΈμŠ€ν„΄μŠ€ν™”λ₯Ό λ§‰μœΌλ €κ±°λ“  private μƒμ„±μžλ₯Ό μ‚¬μš©ν•˜λΌ
μžλ°” μ œλ„€λ¦­(Java Generic)
Java 8 λ‚ μ§œμ™€ μ‹œκ°„ 계산
Java Date와 Time 클래슀λ₯Ό μ‚¬μš©ν•˜λ©΄ μ•ˆλ˜λŠ” 이유
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 28. λ°°μ—΄λ³΄λ‹€λŠ” 리슀트λ₯Ό μ‚¬μš©ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 34. INT μƒμˆ˜ λŒ€μ‹  μ—΄κ±° νƒ€μž…μ„ μ‚¬μš©ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 18. μƒμ†λ³΄λ‹€λŠ” μ»΄ν¬μ§€μ…˜μ„ μ‚¬μš©ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 26. 둜 νƒ€μž…μ€ μ‚¬μš©ν•˜μ§€ 말라
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 10. equalsλŠ” 일반 κ·œμ•½μ„ μ§€μΌœ μž¬μ •μ˜ν•˜λΌ
[μ΄νŽ™ν‹°λΈŒ μžλ°” 3판] μ•„μ΄ν…œ 2. μƒμ„±μžμ— λ§€κ°œλ³€μˆ˜κ°€ λ§Žλ‹€λ©΄ λΉŒλ”λ₯Ό κ³ λ €ν•˜λΌ
log4j, logback 그리고 log4j2
μžλ°” μ—…μΊμŠ€νŒ… λ‹€μš΄μΊμŠ€νŒ…
μžλ°”μ™€ ν–‰μœ„ λ§€κ°œλ³€μˆ˜ν™”(Behavior Parameterization)
μžλ°” μ˜€λ²„λΌμ΄λ”©κ³Ό μ˜€λ²„λ‘œλ”©
μžλ°”μ˜ String 객체와 String λ¦¬ν„°λŸ΄
μžλ°” μ»¬λ ‰μ…˜κ³Ό 동기화(Java Collection Synchronization)
μžλ°” λ ˆνΌλŸ°μŠ€μ™€ κ°€λΉ„μ§€ μ»¬λ ‰μ…˜(Java Reference & Garbage Collection)
μžλ°” κ°€λΉ„μ§€ μ»¬λ ‰μ…˜(Java Garbage Collection)
Java의 λ¬Έμžμ—΄ replaceAll λ©”μ„œλ“œ $(dollar sign) 이슈
μžλ°”μ˜ μΈν„°νŽ˜μ΄μŠ€(Java Interface)
μžλ°” λ¦¬ν”Œλ ‰μ…˜(Java Reflection)κ³Ό 동적 λ‘œλ”©
μžλ°”μ˜ this ν‚€μ›Œλ“œ
μžλ°” 파일 μ••μΆ•κ³Ό μ••μΆ• ν•΄μ œ(ZipInputStream, ZipOutputStream)
μžλ°” μ‹€ν–‰νŒŒμΌ λ§Œλ“€κΈ°
μžλ°”μ˜ 좔상 ν΄λž˜μŠ€μ™€ 좔상 λ©”μ„œλ“œ
μžλ°” μ ‘κ·Ό μ§€μ •μž(Java Access Modifier)
μžλ°” 상속(Java Inheritance)
μžλ°”μ˜ 메인 λ©”μ„œλ“œλŠ” μ™œ public static을 μ‚¬μš©ν• κΉŒ?
μžλ°” μ†Œλ©Έμž finalize
Java Swing 라이브러리 꾸미기(LookAndFeel 라이브러리)
μžλ°”(Java) μ–Έμ–΄μ˜ νŠΉμ§•
μžλ°”μ˜ 데이터 νƒ€μž…

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Infra (20)

Dockerfile Best Practices둜 Java 이미지 μ΅œμ ν™”ν•˜κΈ°
Docker Compose 운영 νŒ¨ν„΄κ³Ό ν™˜κ²½λ³„ μ„€μ • μ „λž΅
Docker Compose Specification으둜 둜컬 ν™˜κ²½ κ΅¬μ„±ν•˜κΈ°
Docker Composeλž€ λ¬΄μ—‡μΌκΉŒ?
gem κΆŒν•œ μ—λŸ¬ ν•΄κ²°ν•˜κΈ°(Gem::FilePermissionError)
λ§₯뢁 μΆ©μ „κΈ° μ—°κ²°μŒ 끄기
MacOS μ—…κ·Έλ ˆμ΄λ“œ ν›„ xcrun: invalid active developer path 였λ₯˜ ν•΄κ²°
λ¦¬λˆ…μŠ€ chmod λͺ…λ Ήμ–΄ μ‚¬μš©λ²•
심볼릭 링크(symbolic link)
crossdomain.xml νŒŒμΌμ€ λ¬΄μ—‡μΌκΉŒ?
RSSλž€ λ¬΄μ—‡μΌκΉŒ? RSS 2.0 μŠ€νŽ™κ³Ό 포맷
FTP Active와 Passive 차이
도컀(Docker): 도컀 μ„€μΉ˜μ™€ λͺ…λ Ήμ–΄ λ”°λΌν•˜κΈ°
크둠 ν‘œν˜„μ‹(Cron Expressions)
grep μ˜ˆμ œμ™€ μ˜΅μ…˜
OSI 7계측 (OSI 7 Layer)
TCP와 UDP 차이 그리고 TCP/IP
NTFS와 FAT32 그리고 exFAT 방식
scp와 rsync(secure Copy & remote synchronization)
μ•„νŒŒμΉ˜ ν†°μΊ£ μ—°λ™ν•˜κΈ°(apache, tomcat, mod_jk)

Backend (26)

Kafka Streams μ—λŸ¬ μ²˜λ¦¬μ™€ 볡ꡬ μ „λž΅
Kafka Streams μœˆλ„μš°μ™€ 쑰인
Kafka Streams KStreamκ³Ό KTable
Kafka Streams κ°œλ…κ³Ό μ•„ν‚€ν…μ²˜
Kafka 컨슈머 μ˜€ν”„μ…‹κ³Ό 컀밋 μ „λž΅
Kafka μ—λŸ¬ μ²˜λ¦¬μ™€ Dead Letter Topic 섀계
μΉ΄ν”„μΉ΄ μŠ€ν‚€λ§ˆ λ ˆμ§€μŠ€νŠΈλ¦¬λž€? 그리고 μ™œ ν•„μš”ν• κΉŒ?
μΉ΄ν”„μΉ΄ 컨슈머 λ¦¬λ°ΈλŸ°μ‹±μ€ μ™œ λ°œμƒν• κΉŒ?
μΉ΄ν”„μΉ΄(Kafka) νŒŒν‹°μ…˜μ€ λͺ‡ κ°œκ°€ μ λ‹Ήν• κΉŒ? 컨슈머λ₯Ό λŠ˜λ €λ„ 빨라지지 μ•ŠλŠ” 이유
Kafka ν† ν”½ μ„€μ •κ°’ 정리
Kafka 컨슈머 재처리 방법듀
JSON Schema: μŠ€ν‚€λ§ˆ κ²°ν•©κ³Ό 쑰건뢀 μŠ€ν‚€λ§ˆ 그리고 반볡적인 μŠ€ν‚€λ§ˆμ˜ μž¬μ‚¬μš©
JSON Schema: 기본적인 μŠ€ν‚€λ§ˆ μ„ μ–Έκ³Ό 검증 방법
JSON Schema: JSON μŠ€ν‚€λ§ˆλž€ λ¬΄μ—‡μΌκΉŒ?
ν†°μΊ£ λ©€ν‹° μΈμŠ€ν„΄μŠ€(Multiple Tomcat Instances)
Node.js μ„€μΉ˜μ™€ 예제
처음 μ ‘ν•˜λŠ” Node.js
파이썬 switch
파이썬 URL νŒŒμ‹±, 호좜(urllib)
파이썬 ν•œκΈ€ 주석 μž…λ ₯ν•˜κΈ°(SyntaxError: Non-ASCII character)
파이썬 if __name__ == "__main__" 의미
Java Kafka Producer, Consumer configs μ„€μ •
Java Kafka Producer, Consumer 예제 κ΅¬ν˜„
Gradle ν”„λ‘œμ νŠΈ ꡬ쑰와 Gradle Wrapper
Gradleμ΄λž€ λ¬΄μ—‡μΌκΉŒ?
메이븐 ν†°μΊ£ 404 μ—λŸ¬ ν•΄κ²°ν•˜κΈ°(Maven Tomcat 404 Error)

Data (7)

Spring (58)

μŠ€ν”„λ§ 배치 메타데이터 ν…Œμ΄λΈ” μžλ™ 생성 μ„€μ •
μŠ€ν”„λ§ @Value μ–΄λ…Έν…Œμ΄μ…˜μ— κΈ°λ³Έκ°’ μ„€μ •
MapStruct 라이브러리둜 객체 맀핑을 κ°„νŽΈν•˜κ²Œ!
Spring Data JPAλ₯Ό μ‚¬μš©ν•  λ•Œ ν•„λ“œ 이름이 λ°μ΄ν„°λ² μ΄μŠ€μ˜ μ˜ˆμ•½μ–΄μ™€ κ°™μ•„μ„œ 문법 였λ₯˜κ°€ λ°œμƒν•œλ‹€λ©΄?
Spring JDBCλ₯Ό μ‚¬μš©ν•  λ•Œμ˜ SQL 관리
Spring Cloud Config: Spring Boot 2.4 λ²„μ „μ—μ„œμ˜ 변경사항
Spring Bootμ—μ„œ MongoDB에 _class ν•„λ“œλ₯Ό μ €μž₯ν•˜μ§€ μ•ŠλŠ” 방법
μŠ€ν”„λ§μ—μ„œ μ—¬λŸ¬ 개의 DataSourceλ₯Ό λ“±λ‘ν•˜κ³  μ‚¬μš©ν•  수 μžˆμ„κΉŒ?
RestTemplateκ³Ό WebClient
μŠ€ν”„λ§ λΆ€νŠΈ μ• ν”Œλ¦¬μΌ€μ΄μ…˜μ΄ ꡬ동될 λ•Œ μ½”λ“œλ₯Ό μ‹€ν–‰ν•˜λŠ” 방법
DataBufferLimitException ν•΄κ²° 방법
Spring Cloud Config: Git Webhook을 μ΄μš©ν•œ μžλ™ κ°±μ‹ 
Spring Cloud Config: Spring Cloud Bus 예제
Spring Cloud Config: μ†Œκ°œμ™€ 예제
μŠ€ν”„λ§μ—μ„œ λΉˆμ„ 생성할 λ•Œ νŒ¨ν‚€μ§€ μ΄λ¦„κΉŒμ§€ μ‹λ³„μžλ‘œ 포함할 수 μžˆμ„κΉŒ?
μƒμ„±μž μ£Όμž…μ„ @Autowiredλ₯Ό μ‚¬μš©ν•˜λŠ” ν•„λ“œ μ£Όμž…λ³΄λ‹€ ꢌμž₯ν•˜λŠ” ν•˜λŠ” 이유
Java 9둜 μŠ€ν”„λ§ λΆ€νŠΈ ν”„λ‘œμ νŠΈλ₯Ό μ‹€ν–‰ν•  λ•Œ ClassNotFoundException: JAXBException 였λ₯˜ ν•΄κ²°ν•˜κΈ°
[Web on Reactive Stack] 6. Reactive Libraries
[Web on Reactive Stack] 5. RSocket: 5.4. MetadataExtractor
[Web on Reactive Stack] 5. RSocket: 5.3. Annotated Responders
[Web on Reactive Stack] 5. RSocket: 5.2. RSocketRequester
[Web on Reactive Stack] 5. RSocket: 5.1. Overview
[Web on Reactive Stack] 5. RSocket
[Web on Reactive Stack] 4. Testing
[Web on Reactive Stack] 3. WebSockets: 3.2. μ›Ήμ†ŒμΌ“ API(WebSocket API)
[Web on Reactive Stack] 3. WebSockets: 3.1. Introduction to WebSocket
[Web on Reactive Stack] 3. WebSockets
[Web on Reactive Stack] 2. WebClient: 2.7. Testing
[Web on Reactive Stack] 2. WebClient: 2.6. Synchronous Use
[Web on Reactive Stack] 2. WebClient: 2.5. Client Filters
[Web on Reactive Stack] 2. WebClient: 2.4. Request Body
[Web on Reactive Stack] 2. WebClient: 2.3. exchange()
[Web on Reactive Stack] 2. WebClient: 2.2. retrieve()
[Web on Reactive Stack] 2. WebClient: 2.1. Configuration
[Web on Reactive Stack] 2. WebClient
[Web on Reactive Stack] 1. μŠ€ν”„λ§ μ›Ήν”ŒλŸ­μŠ€: 1.12. HTTP/2
[Web on Reactive Stack] 1. μŠ€ν”„λ§ μ›Ήν”ŒλŸ­μŠ€: 1.11. WebFlux Config
[Web on Reactive Stack] 1. μŠ€ν”„λ§ μ›Ήν”ŒλŸ­μŠ€: 1.10. HTTP Caching
[Web on Reactive Stack] 1. μŠ€ν”„λ§ μ›Ήν”ŒλŸ­μŠ€: 1.9. View Technologies
[Web on Reactive Stack] 1. μŠ€ν”„λ§ μ›Ήν”ŒλŸ­μŠ€: 1.8. Web Security
[Web on Reactive Stack] 1. μŠ€ν”„λ§ μ›Ήν”ŒλŸ­μŠ€: 1.7. CORS
[Web on Reactive Stack] 1. μŠ€ν”„λ§ μ›Ήν”ŒλŸ­μŠ€: 1.6. URI Links
[Web on Reactive Stack] 1. μŠ€ν”„λ§ μ›Ήν”ŒλŸ­μŠ€: 1.5. Functional Endpoints
[Web on Reactive Stack] 1. μŠ€ν”„λ§ μ›Ήν”ŒλŸ­μŠ€: 1.4. Annotated Controllers
[Web on Reactive Stack] 1. μŠ€ν”„λ§ μ›Ήν”ŒλŸ­μŠ€: 1.3. DispatcherHandler
[Web on Reactive Stack] 1. μŠ€ν”„λ§ μ›Ήν”ŒλŸ­μŠ€: 1.2. Reactive Core
[Web on Reactive Stack] 1. μŠ€ν”„λ§ μ›Ήν”ŒλŸ­μŠ€: 1.1. Overview
[Web on Reactive Stack] 1. μŠ€ν”„λ§ μ›Ήν”ŒλŸ­μŠ€
[Web on Reactive Stack] 레퍼런슀 ν•œκΈ€ λ²ˆμ—­
μŠ€ν”„λ§ λΆ€νŠΈμ—μ„œ JSONPλ₯Ό λ‹€λ£¨λŠ” 방법, CORS 이슈 ν•΄κ²°ν•˜κΈ°
Intellijμ—μ„œ Spring MVC + Maven ν”„λ‘œμ νŠΈ μ„€μ •ν•˜κΈ°
static λ³€μˆ˜μ— autowired μ„€μ •ν•˜λ €λ©΄ μ–΄λ–»κ²Œ ν•΄μ•Ό ν• κΉŒ?
Spring Bootμ—μ„œ Log4j2 μ„€μ •ν•˜κΈ°
Intellijμ—μ„œ Spring Boot ν”„λ‘œμ νŠΈ μ„€μ •ν•˜κΈ°
μŠ€ν”„λ§ 빈 생λͺ…μ£ΌκΈ°(Bean Lifecycle) λ©”μ„œλ“œμ™€ μ‹€ν–‰ μˆœμ„œ
μŠ€ν”„λ§ ν”„λ ˆμž„μ›Œν¬ 정리: ν…ŒμŠ€νŠΈ
μŠ€ν”„λ§ ν”„λ ˆμž„μ›Œν¬ 정리: μ œμ–΄μ˜ μ—­μ „
μŠ€ν”„λ§ ν”„λ ˆμž„μ›Œν¬ 정리: λ””μžμΈ νŒ¨ν„΄

Career (9)

Engineering (24)

μΈν…”λ¦¬μ œμ΄μ—μ„œ JUnit5 @DisplayName μ–΄λ…Έν…Œμ΄μ…˜μ΄ λ™μž‘ν•˜μ§€ μ•Šμ„ λ•Œ ν•΄κ²°ν•˜κΈ°
μΈν…”λ¦¬μ œμ΄μ—μ„œ μ• ν”Œλ¦¬μΌ€μ΄μ…˜ λΆ„μ„ν•˜κΈ°
git push 였λ₯˜: Please use a personal access token instead
Code With Me: Intellij IDEAλ₯Ό μ΄μš©ν•œ νŽ˜μ–΄ ν”„λ‘œκ·Έλž˜λ°(Pair Programming)
Intellijμ—μ„œ nodejs ν”„λ‘œμ νŠΈκ°€ μΈμ‹λ˜μ§€ μ•Šμ„ λ•Œ ν•΄κ²° 방법
κ΅¬κΈ€μ˜ μ½”λ“œ 리뷰 κ°€μ΄λ“œ: λ¦¬λ·°μ–΄μ˜ μ˜κ²¬μ„ λ‹€λ£¨λŠ” 방법
κ΅¬κΈ€μ˜ μ½”λ“œ 리뷰 κ°€μ΄λ“œ: 변경사항을 μž‘κ²Œ λ‚˜λˆ„κΈ°
κ΅¬κΈ€μ˜ μ½”λ“œ 리뷰 κ°€μ΄λ“œ: 쒋은 CL μ„€λͺ…을 μž‘μ„±ν•˜λŠ” 방법
κ΅¬κΈ€μ˜ μ½”λ“œ 리뷰 κ°€μ΄λ“œ: μ½”λ“œ μž‘μ„±μž 편
κ΅¬κΈ€μ˜ μ½”λ“œ 리뷰 κ°€μ΄λ“œ: μ½”λ“œ λ¦¬λ·°μ—μ„œ λ°˜λŒ€ μ˜κ²¬μ„ λ‹€λ£¨λŠ” 방법
κ΅¬κΈ€μ˜ μ½”λ“œ 리뷰 κ°€μ΄λ“œ: μ½”λ“œ 리뷰에 μ˜κ²¬μ„ μž‘μ„±ν•˜λŠ” 방법
κ΅¬κΈ€μ˜ μ½”λ“œ 리뷰 κ°€μ΄λ“œ: 긴급상황
κ΅¬κΈ€μ˜ μ½”λ“œ 리뷰 κ°€μ΄λ“œ: 리뷰쀑인 μ½”λ“œ 변경사항 탐색
κ΅¬κΈ€μ˜ μ½”λ“œ 리뷰 κ°€μ΄λ“œ: μ½”λ“œ 리뷰의 속도
κ΅¬κΈ€μ˜ μ½”λ“œ 리뷰 κ°€μ΄λ“œ: μ½”λ“œ λ¦¬λ·°μ—μ„œ 보아야 ν•˜λŠ” 것
κ΅¬κΈ€μ˜ μ½”λ“œ 리뷰 κ°€μ΄λ“œ: μ½”λ“œ 리뷰의 ν‘œμ€€ 원칙
κ΅¬κΈ€μ˜ μ½”λ“œ 리뷰 κ°€μ΄λ“œ: 리뷰어 편
κ΅¬κΈ€μ˜ μ½”λ“œ 리뷰 κ°€μ΄λ“œ: ν•œκΈ€ λ²ˆμ—­λ³Έ
git rebase둜 컀밋 ν•©μΉ˜κΈ°
μΈν…”λ¦¬μ œμ΄(Intellij) ν”ŒλŸ¬κ·ΈμΈ λ§Œλ“€κΈ°: 3. λΉŒλ“œ & λ°°ν¬ν•˜κΈ°
μΈν…”λ¦¬μ œμ΄(Intellij) ν”ŒλŸ¬κ·ΈμΈ λ§Œλ“€κΈ°: 2. Action μ •μ˜
μΈν…”λ¦¬μ œμ΄(Intellij) ν”ŒλŸ¬κ·ΈμΈ λ§Œλ“€κΈ°: 1. ν™˜κ²½ ꡬ성
μΈν…”λ¦¬μ œμ΄ source release 8 requires target release 1.8 였λ₯˜ ν•΄κ²°ν•˜κΈ°
git commit author λ³€κ²½ (컀밋 μž‘μ„±μž λ³€κ²½ν•˜κΈ°)

AI (9)