用字符代码而不是regex替换字符串？ [英] Replace a string by character code instead of regex?

问题描述

Java（或任何其他第三方库）是否提供了一个API，用于根据字符代码（在已知的 Charset 中）替换字符，而不是正则表达式？例如，要在给定字符串中用双引号替换双引号，可以使用：

Does Java (or any other 3rd party lib) provide an API for replacing characters based on character code (within a known Charset of course) rather than a regex? For instance, to replace double quotes with single quotes in a given string, one might use:

String noDoubles = containsDoubles.replace("\"", "'");

quote是 U + 0022 。所以有什么东西可以搜索 U + 0022 字符的实例，单引号？

However the UTF-8 character code for a double quote is U+0022. So is there anything that could search for instances of U+0022 characters and replace them with single quotes?

此外，不只是询问双/单引号，我在说的字符代码查找和替换任何2个字符。

Also, not just asking about double/single quotes here, I'm talking about the character code lookup and replacement with any 2 characters.

推荐答案

使用重载版本 - String#replace（char，char） ，因此，您可以使用它像这样：

Use the overloaded version - String#replace(char, char) which takes characters. So, you can use it like this:

String str = "aa \" bb \"";
str = str.replace('\u0022', '\'');
System.out.println(str);  // aa ' bb '

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