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๐Ÿƒ‍โ™€๏ธprogrammers/Java

ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค - java ๋‘ ์ˆ˜์˜ ํ•ฉ

HYEJU01 2024. 5. 10. 10:28

๐Ÿ’ก string ๊ฐ’์„ ์ •์ˆ˜๋กœ ๋ณ€ํ™˜ํ•ด์„œ ๊ณ„์‚ฐ ํ›„ string ์œผ๋กœ ๋ฐ˜ํ™˜ํ•ด์•ผํ•œ๋‹ค.

 

 

๐Ÿ’ฌBigInteger ํด๋ž˜์Šค ::  Java์—์„œ ์ž„์˜ ์ •๋ฐ€๋„ ์ •์ˆ˜๋ฅผ ๋‚˜ํƒ€๋‚ด๋Š” ๋ฐ ์‚ฌ์šฉ, ์ •์ˆ˜ ํฌ๊ธฐ์˜ ์ œํ•œ์ด ์—†๋‹ค.

๐Ÿ’ฌ BigInteger.add() : ๊ฐ’์„ ์‚ฝ์ž…

๐Ÿ’ฌ toString() : ์ •์ˆ˜๋ฅผ ๋ฌธ์ž์—ด๋กœ ๋ณ€ํ™˜

import java.math.BigInteger; // ๋งค์šฐ ํฐ ์ •์ˆ˜๋ฅผ ๋‹ค๋ฃจ๋Š” 
class Solution {
    public String solution(String a, String b) {
        
        BigInteger numA = new BigInteger(a);
        BigInteger numB = new BigInteger(b);
        
        BigInteger sum = numA.add(numB);
        
        return sum.toString()
    }
}

 

์‹คํŒจ)  ์ •์ˆ˜ ๋ฒ”์œ„ ์ดˆ๊ณผ์ด๋‹ค. 

class Solution {
    public String solution(String a, String b) {
        String answer = "";
        
        int sum = Integer.parseInt(a) + Integer.parseInt(b);
        answer = String.valueOf(sum);
        
        return answer;
    }
}