[프로그래머스] 공백으로 구분하기2

class Solution {
    public String[] solution(String my_string) {
        String[] words = my_string.trim().split("\\s+");
        String[] answer = new String[words.length];
        
        for (int i = 0; i < words.length; i++) {
            answer[i] = words[i];
        }
        
        return answer;
    }
}

import java.util.*; // 임포트를 해줘야 함

class Solution {
    public String[] solution(String my_string) {
        StringTokenizer st = new StringTokenizer(my_string);
        int size = st.countTokens();
        
        String[] arr = new String[size];
        for ( int i = 0; i < size; i++){
            arr[i] = st.nextToken();
        }
        return arr;
  
    }
}