如何在java中使用'^'这个特殊字符拆分字符串？ [英] How to split the string using '^' this special character in java?

问题描述

我想拆分以下字符串Good ^ Evening我使用拆分选项它不拆分值。请帮我。

I want to split the following string "Good^Evening" i used split option it is not split the value. please help me.

这就是我一直在尝试的：

This is what I've been trying:

String Val = "Good^Evening";
String[] valArray = Val.Split("^");

推荐答案

我假设你做了类似的事情：

I'm assuming you did something like:

String[] parts = str.split("^");

这不起作用，因为参数 split 实际上是正则表达式，其中 ^ 有特殊意义。请改为尝试：

That doesn't work because the argument to split is actually a regular expression, where ^ has a special meaning. Try this instead:

String[] parts = str.split("\\^");

\\ 实际上是等价的到单个 \ （第一个 \ 是字符串文字中的Java转义序列所必需的）。它是正则表达式中的一个特殊字符，意思是按字面意思使用下一个字符，不要解释它的特殊含义。

The \\ is really equivalent to a single \ (the first \ is required as a Java escape sequence in string literals). It is then a special character in regular expressions which means "use the next character literally, don't interpret its special meaning".

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