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