λ³Έλ¬Έ λ°”λ‘œκ°€κΈ°

TIL/Java1

Comparator.comparing() - Java8 Comparator.comparing λ©”μ†Œλ“œ Java8λΆ€ν„° Comparator에 μΈν„°νŽ˜μ΄μŠ€μ™€ λ©”μ†Œλ“œκ°€ μΆ”κ°€λ˜μ—ˆλŠ”λ°, comparing이 κ·Έ 쀑 ν•˜λ‚˜μ΄λ‹€. static function이며, μ–΄λ–€ 순으둜 정렬해야할지에 κ΄€ν•΄ Comparator type으둜 λ°˜ν™˜ν•œλ‹€. μš°μ„  API λ¬Έμ„œλ₯Ό μ°Έκ³ ν•˜μ—¬ Comparator.comparingκ³Ό κ΄€λ ¨ν•œ 사항을 μ •λ¦¬ν•œ λ’€, PQμ—μ„œ κ°„λ‹¨νžˆ Comparator을 μ‚¬μš©ν•˜λŠ” 법에 κ΄€ν•΄ μ •λ¦¬ν•œλ‹€. Pirority Queue μ—μ„œ 생성 μ‹œ, Comparator.comparingλ₯Ό μΈμžκ°’μœΌλ‘œ μ€€λ‹€λŠ” 것은, PQ 객체λ₯Ό μ–΄λ–€ μ‹μœΌλ‘œ 정렬할지λ₯Ό parameter ν˜•μ‹μœΌλ‘œ μ•Œλ €μ£ΌλŠ” 것이닀. API /** * Accepts a function that extracts a {@link jav.. 2022. 7. 20.

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