[Java] String, StringBuffer, StringBuilder ์ด์ •๋ฆฌ

์˜ค๋Š˜์€ Java์˜ String์— ๋Œ€ํ•ด์„œ ์ด์•ผ๊ธฐํ•ด๋ณด๊ฒ ์Šต๋‹ˆ๋‹ค. Java์—๋Š” ๋ฌธ์ž์—ด์„ ํ‘œํ˜„ํ•˜๊ธฐ ์œ„ํ•œ 3๊ฐ€์ง€ ํด๋ž˜์Šค๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. String StringBuffer StringBuilder 3๊ฐœ ๋ชจ๋‘ String์„ ํ‘œํ˜„ํ•˜๊ธฐ ์œ„ํ•œ ํด๋ž˜์Šค์ด์ง€๋งŒ ์—ฌ๋Ÿฌ๋ถ„๋“ค์ด ์งš์–ด์•ผํ•  ๊ฒƒ์ด ์žˆ๋Š”๋ฐ์š”. ์ด 3๊ฐ€์ง€๋Š” ๋ชจ๋‘ ๋ฌธ์ž์—ด์„ ํ‘œ๊ธฐํ•˜๊ธฐ ์œ„ํ•œ ๊ฒƒ์ด์ง€๋งŒ ๊ฐ์ž ๊ตฌํ˜„๋˜๋Š” ๋ฐฉ๋ฒ•์ด ์ „ํ˜€ ๋‹ค๋ฅธ ํด๋ž˜์Šค๋“ค์ž…๋‹ˆ๋‹ค. See Java Reference ์ž๋ฐ” ๋ ˆํผ๋Ÿฐ์Šค ๋ฌธ์„œ์— ๋‚˜์™€ ์žˆ๋Š” ์„ธ ๊ฐ€์ง€์˜ ํด๋ž˜์Šค๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์ด ์„ค๋ช…๋˜์–ด ์žˆ์Šต๋‹ˆ๋‹ค String Strings are constant; their values cannot be changed after they are created. String์€ ์ƒ์ˆ˜์ด๋ฉฐ, ๊ฐ’์„ ๋งŒ๋“  ๋’ค์—๋Š” ๋ณ€๊ฒฝํ•  ์ˆ˜ ์—†๋‹ค (Immutable..