java - 当部分具有共同字符时如何替换字符串的多个部分？

Question

我需要更改单个字符串的几个部分，其中指定的部分有一些共同的字符；例如:

worker => working

work => worked

note :: "=>" means "changes to"

使用如下代码会产生大量错误:

String txt = "work like a real worker";
String txt2 = txt.replace("worker", "working").replace("work", "worked");

As I tested the codes above, they output "worked like a real workeding", however I need to get "worked like a real working".

Answer 1

如果您使用replaceAll 而不是replace，您可以使用正则表达式。正则表达式将允许您使用 \b 来表示 word boundaries .这样做，您只会替换整个单词，而不是像您现在所做的那样替换单词的一部分。

String txt2 = txt.replaceAll("\\bworker\\b", "working").replaceAll("\\bwork\\b", "worked");