有没有办法连接字符串，每个字符串都有一个特定的周围字符串？ [英] Is there a way to join strings, each with a specific surrounding string?

问题描述

我希望使用guava的 Joiner 将 List< String> 加入到一个字符串中，但周围有列表中每个字符串周围的字符串。所以我想得一个字符串列表：

I'm looking to use guava's Joiner to join List<String> into one string, but with surrounding strings around each one in the list. So I want to take a list of Strings:

List<String> names = Arrays.asList("John", "Mary", "Henry");

并生成这一个字符串：

"your guest John is here, your guest Mary is here, your guest Henry is here"

我看到的使用 Joiner 的例子似乎是生成用逗号分隔的3个名字，但我想用每个字符串包围一些额外的字符串（每次都是相同的字符串）。

The examples I see of using Joiner seem to be to generate the 3 names separated by a comma, but I'm looking to surround each string with some extra strings (the same ones every time).

我希望我在这里足够清楚。感谢您的帮助。

I hope I'm being clear enough here. Thanks for your help.

推荐答案

执行此操作的方法是使用转换，首先：

The way to do this is with a transform, first:

 Joiner.on(", ").join(Iterables.transform(names, new Function<String, String>() {
   public String apply(String str) { return "your guest " + str + " is here"; }
 }));

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