如何以一种最终不会替换另一个字符串的方式替换两个字符串? [英] How can I replace two strings in a way that one does not end up replacing the other?

问题描述

假设我有以下代码:

String word1 = "bar";
String word2 = "foo";
String story = "Once upon a time, there was a foo and a bar."
story = story.replace("foo", word1);
story = story.replace("bar", word2);

这段代码运行后，story 的值将是 从前，有一个 foo 和一个 foo."

After this code runs, the value of story will be "Once upon a time, there was a foo and a foo."

如果我以相反的顺序替换它们，则会出现类似的问题:

A similar issue occurs if I replaced them in the opposite order:

String word1 = "bar";
String word2 = "foo";
String story = "Once upon a time, there was a foo and a bar."
story = story.replace("bar", word2);
story = story.replace("foo", word1);

story 的值将是 从前，有一个酒吧和一个酒吧."

我的目标是将 story 变成 从前，有一个酒吧和一个 foo." 我怎么能做到这一点?

My goal is to turn story into "Once upon a time, there was a bar and a foo." How could I accomplish that?

推荐答案

使用 replaceEach() 方法来自 Apache Commons StringUtils:

StringUtils.replaceEach(story, new String[]{"foo", "bar"}, new String[]{"bar", "foo"})

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