week9_leekyunghee - GANGNAM-JAVA/JAVA-STUDY GitHub Wiki

java optional에 λŒ€ν•œ κΈ°λŠ₯ μ„€λͺ…κ³Ό μ˜ˆμ‹œλ₯Ό μ„€λͺ…ν•΄λ³΄μ‹œμ˜€

μžλ°” λžŒλ‹€ & ν΄λ‘œμ €λž€ 무엇인가?

μŠ€ν”„λ§5의 νŠΉμ§•μ— λŒ€ν•΄ μ„€λͺ…ν•΄λ³΄μ‹œμ˜€

db lock μ’…λ₯˜μ— λŒ€ν•΄ μ„€λͺ…ν•˜μ‹œμ˜€

rest, restful api에 λŒ€ν•΄μ„œ μ„€λͺ…ν•΄λ³΄μ‹œμ˜€.