프로그래머스 - rny_string

 

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class Solution {
    public String solution(String rny_string) {
        String answer = "";

        for(int i = 0; i < rny_string.length(); i++){

            if(rny_string.charAt(i) == 'm'){
                answer += "rn";
            }else{
                answer += rny_string.charAt(i);
            }
        }
        System.out.println(answer);
        return answer;
    }
}