字符串

难度简单

题目描述

解题思路

遍历每个单词
对每个单词进行翻转

Code

public String reverseWords(String s) {
    if (s.length() == 0) {
        return "";
    }
    String[] words = s.split(" ");
    StringBuilder ret = new StringBuilder();
    for (int i = 0; i < words.length; i++) {
        ret.append(reverseWord(words[i])).append(" ");
    }
    return ret.toString().trim();
}
public String reverseWord(String word) {
    StringBuilder ret = new StringBuilder();
    char[] chars = word.toCharArray();
    for (int i = chars.length - 1; i >= 0; i--) {
        ret.append(chars[i]);
    }
    return ret.toString();
}