Java_反转字符串中的单词III(ReverseWords)

题目

思路

//空格分割字符串，得到字符串数组
//遍历字符串数组，每个元素转换为StringBuilder，逆序
//StringBuilder拼接+空格

class Solution {
    public String reverseWords(String s) {
        String[] str = s.split(" ");
		StringBuilder rw = new StringBuilder();
		for (int i = 0; i < str.length; i++) {
			StringBuilder temp = new StringBuilder(str[i]);
			rw.append(temp.reverse() + " ");
		}
		rw.deleteCharAt(rw.length() - 1);
		return rw.toString();
    }
}

测试结果