18.수박수박수박수박수박수? (StringBuilder)

 

class Solution {
    public String solution(int n) {            
        String answer = "";
        String str1 = "수";
        String str2 = "박";
        StringBuilder sb = new StringBuilder();
        int cnt = 1;
        while(cnt <= n){
            if(cnt % 2 != 0){
                sb.append(str1);
            }else{
                sb.append(str2);
            }
            cnt++;
        }
        answer = sb.toString();
        return answer;
    }
}

 

StringBuilder sb = new String builder();

String answer = sb.toString();