[Programmers] Lv.0 / 문자열 섞기 / Java

문제

 

풀이

class Solution {
    public String solution(String str1, String str2) {
        String answer = "";
        
        for(int i = 0; i < str1.length(); i++) {
            answer += str1.substring(i, i + 1);
            answer += str2.substring(i, i + 1);
        }
        return answer;
    }
}

class Solution {
    public String solution(String str1, String str2) {
        String answer = "";

        for(int i = 0; i < str1.length(); i++){
            answer+= str1.charAt(i);
            answer+= str2.charAt(i);
        }

        return answer;
    }
}

import java.util.*;

class Solution {
    public String solution(String str1, String str2) {
        StringBuffer sb = new StringBuffer();
        
        for (int i = 0;i < str1.length();i++) {
            sb.append(str1.charAt(i)).append(str2.charAt(i));
        }
        return sb.toString();
    }
}

 

출처

https://school.programmers.co.kr/learn/courses/30/lessons/181942