leetcode-557-Reverse-Words-in-a-String-III

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描述

Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order.

Example 1:

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Input: "Let's take LeetCode contest"
Output: "s'teL ekat edoCteeL tsetnoc"

Note: In the string, each word is separated by single space and there will not be any extra space in the string.

分析

在 Java 里，有个 StringBuilder 可以用来进行字符串的翻转。

解决方案1(Java)

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class Solution {
    public String reverseWords(String s) {
        String words[] = s.split(" ");
        StringBuilder result = new StringBuilder();
        for (String word: words) {
            result.append(new StringBuilder(word).reverse().toString() + " ");
        }
        return result.toString().trim();
    }
}

相关问题

(E)Reverse String II

题目来源