Java替换字符串中的所有方括号 [英] Java replace all square brackets in a string
本文介绍了Java替换字符串中的所有方括号的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想从字符串中删除方括号,但我不知道如何。
I want to remove square brackets from a string, but I don't know how.
String str = "[Chrissman-@1]";
str = replaceAll("\\[\\]", "");
String[] temp = str.split("-@");
System.out.println("Nickname: " + temp[0] + " | Power: " + temp[1]);
但我的结果是:[Chrissman | 1]
方括号不会被删除。
But my result is: [Chrissman | 1] The square brackets doesn't get removed.
我尝试使用不同的正则表达式:\\ [。 *?\\]
,\\ [\\\\ + \\]
但结果是一样的,方括号仍附在字符串上。
I tried using a different regex: "\\[.*?\\]"
, "\\[\\d+\\]"
but the result is the same, the square brackets still attached on the string.
编辑:
我试过:
str.replaceAll("]", "");
str.replaceAll("[", "");
现在我收到:
Exception in thread "Thread-4" java.util.regex.PatternSyntaxException: Unclosed character class near index 0
[
^
at java.util.regex.Pattern.error(Unknown Source)
at java.util.regex.Pattern.clazz(Unknown Source)
at java.util.regex.Pattern.sequence(Unknown Source)
at java.util.regex.Pattern.expr(Unknown Source)
at java.util.regex.Pattern.compile(Unknown Source)
at java.util.regex.Pattern.<init>(Unknown Source)
at java.util.regex.Pattern.compile(Unknown Source)
at java.lang.String.replaceAll(Unknown Source)
推荐答案
replaceAll方法正在尝试匹配字符串文字 []
字符串中不存在
尝试单独替换这些项目。
The replaceAll method is attempting to match the String literal []
which does not exist within the String
try replacing these items separately.
String str = "[Chrissman-@1]";
str = str.replaceAll("\\[", "").replaceAll("\\]","");
这篇关于Java替换字符串中的所有方括号的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文