颠倒“Hello World”的每个单词。 Java的字符串 [英] Reverse each individual word of "Hello World" string with Java

问题描述

我想要反转Java中String的每个个别字（不是整个字符串，只是每个单词）。

I want to reverse each individual word of a String in Java (not the entire string, just each individual word).

示例：如果输入String为Hello World，则输出应为olleH dlroW。

Example: if input String is "Hello World" then the output should be "olleH dlroW".

推荐答案

这应该可以解决问题。这将迭代源字符串中的每个单词，使用 StringBuilder 的内置 reverse（）方法，并输出反转的单词。

This should do the trick. This will iterate through each word in the source string, reverse it using StringBuilder's built-in reverse() method, and output the reversed word.

String source = "Hello World";

for (String part : source.split(" ")) {
    System.out.print(new StringBuilder(part).reverse().toString());
    System.out.print(" ");
}

输出：

olleH dlroW 

注意：评论者正确地指出了我认为应该在这里提到的一些事情。此示例将在结果的末尾附加一个额外的空格。它还假设您的单词每个单独的空格分隔，并且您的句子不包含标点符号。

Notes: Commenters have correctly pointed out a few things that I thought I should mention here. This example will append an extra space to the end of the result. It also assumes your words are separated by a single space each and your sentence contains no punctuation.

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