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๐Ÿƒ‍โ™€๏ธprogrammers/Java

หšโ‚Šโœฉโ€งโ‚Š ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค - java ๋ถ€๋ถ„ ๋ฌธ์ž์—ด์ธ์ง€ ํ™•์ธํ•˜๊ธฐ หšโ‚Šโœฉโ€งโ‚Š

HYEJU01 2024. 5. 10. 10:46

 ๐Ÿ’ก target ์ด my_string ์˜ ๋ถ€๋ถ„๋ฌธ์ž์ธ์ง€ ์•Œ์•„๋‚ด๋Š” ์ฝ”๋“œ๋ฅผ ์ž‘์„ฑํ•ด์•ผํ•œ๋‹ค.

 

 

์ด ๊ฒฝ์šฐ ๊ฐ„๋‹จํ•˜๊ฒŒ contains ํ•จ์ˆ˜๋ฅผ ์ด์šฉํ•ด์„œ ํ’€ ์ˆ˜ ์žˆ๋‹ค !
๋ฆฌํ„ด๋„ ์‚ผํ•ญ์—ฐ์‚ฐ์ž๋ฅผ ํ†ตํ•ด ๊ฐ„๊ฒฐํ•˜๊ฒŒ ์ž‘์„ฑํ•ด์ฃผ์—ˆ๋‹ค.

 

 

 ๐Ÿ’ฌ str.contains() :: ํŠน์ •ํ•œ ๋ถ€๋ถ„ ๋ฌธ์ž์—ด์ด ์ฃผ์–ด์ง„ ๋ฌธ์ž์—ด ์•ˆ์— ํฌํ•จ๋˜์–ด ์žˆ๋Š”์ง€๋ฅผ ํ™•์ธ  (T &  F)

class Solution {
    public int solution(String my_string, String target) {
        return my_string.contains(target)?1:0;
    }
}

 

 

โญ๋‹ค๋ฅธ์ฝ”๋“œ

 

indexOf ํ•จ์ˆ˜์˜ ๊ฒฝ์šฐ์—๋Š” ๋ฌธ์ž์—ด์ด ์กด์žฌํ•˜๋Š”์ง€ ์•ˆํ•˜๋Š”์ง€ ๋ฐ˜ํ™˜๊ฐ’์„ ํ†ตํ•ด ์•Œ ์ˆ˜ ์žˆ๋‹ค.

-1 ๋ณด๋‹ค ํฐ ๊ฒฝ์šฐ ๋ฌธ์ž์—ด์ด ์กด์žฌํ•˜๋Š” ๊ฒƒ์„ ํ†ตํ•ด ํ™•์ธํ•˜๋Š” ์ฝ”๋“œ์ด๋‹ค.

 

๐Ÿ’ฌ indexOf()  :: ํŠน์ • ๋ฌธ์ž๋‚˜ ๋ฌธ์ž์—ด์ด ์ฒ˜์Œ์œผ๋กœ ๋“ฑ์žฅํ•˜๋Š” ์œ„์น˜(์ธ๋ฑ์Šค)๋ฅผ ๋ฐ˜ํ™˜ํ•˜๋Š” ๋ฉ”์†Œ๋“œ์ž…๋‹ˆ๋‹ค.

๋งŒ์•ฝ ํ•ด๋‹น ๋ฌธ์ž๋‚˜ ๋ฌธ์ž์—ด์ด ๋ฌธ์ž์—ด ๋‚ด์— ์กด์žฌํ•˜์ง€ ์•Š๋Š”๋‹ค๋ฉด -1์„ ๋ฐ˜ํ™˜ํ•œ๋‹ค.

class Solution {
    public int solution(String my_string, String target) {
        return my_string.indexOf(target) > -1 ? 1 : 0;
    }
}