java ๋ฌธ์ž ํด๋ž˜์Šค 1

[java] java ๊ธฐ์ดˆ ๋ฌธ๋ฒ• ์ •๋ฆฌ - ๋ฌธ์ž์—ด, ๋ฌธ์ž

java ๊ธฐ์ดˆ ๋ฌธ๋ฒ• ์ •๋ฆฌ - ๋ฌธ์ž์—ด, ๋ฌธ์ž ํ˜„์žฌ ์‹œ์  ๊ธฐ์ค€์œผ๋กœ ๋ฌธ์ž์—ด, ๋ฌธ์ž์™€ ๊ด€๋ จ๋œ ๋ฌธ์ œ ํ’€๋ฉด์„œ ์ž์ฃผ ๋‚˜์˜จ ๋‚ด์šฉ์„ ์ •๋ฆฌํ–ˆ์Šต๋‹ˆ๋‹ค ! 1. ๋ฌธ์ž์—ด ํ•œ ๋ฌธ์ž ์”ฉ ์ถœ๋ ฅ 2. ๋ฐฐ์—ด ๋ฐ ๋ฌธ์ž์—ด ํฌ๊ธฐ ๊ตฌํ•˜๊ธฐ 3. ๋ฌธ์ž์—ด -> ๋ฌธ์ž ๋ฐฐ์—ด 4. StringBuilder 5. Scanner, BufferdReader, BufferdWriter, StringTokenizer 6. for-each ๋ฌธ 1. ๋ฌธ์ž์—ด ํ•œ ๋ฌธ์ž ์”ฉ ์ถœ๋ ฅ str.charAt(i) ๋ฌธ์ž์—ด ๋ณ€์ˆ˜ str์—์„œ ์ธ๋ฑ์Šค i์— ํ•ด๋‹นํ•˜๋Š” ์œ„์น˜์— ์žˆ๋Š” ๋ฌธ์ž ๊ฐ€์ ธ์˜ค๊ธฐ 2. ๋ฐฐ์—ด ๋ฐ ๋ฌธ์ž์—ด ํฌ๊ธฐ ๊ตฌํ•˜๊ธฐ - ๋ฐฐ์—ด a.length; - ๋ฌธ์ž์—ด a.length(); 3. ๋ฌธ์ž์—ด -> ๋ฌธ์ž ๋ฐฐ์—ด my_string.toCharArray() ๋ฌธ์ž์—ด ๋ณ€์ˆ˜ my_string์„ ๋ฌธ..