Exception in thread "main" java.util.regex.PatternSyntaxException: Unclosed character class near index 0 [ ^ 出现此错误应该是字符转义出现问题: System.out.println(str.replaceAll("[", "22")); 解决方案:在[之前加上\ System.out.println(str.replaceAll("\[", "22"));...
13. 上述代码中,我们试图使用"abc"这个模式进行正则表达式匹配,然而,"“是一个元字符,它用于匹配前面的字符零次或多次,而不是作为普通字符使用。因此,编译器会抛出PatternSyntaxException异常,并输出错误信息"Unclosed character class near index 0”,意味着未关闭的字符类。 为了解决这个问题,我们应该使用"*“转义字...
当Java编译器在解析正则表达式时遇到未关闭的字符类(character class)时,就会抛出java.util.regex.PatternSyntaxException: Unclosed character class near index异常。字符类用于定义一组可能的字符,通常用方括号[]括起来。例如,[abc]表示匹配字符a、b或c之一。 异常示例 以下示例将演示如何触发Unclosed character class异...
Unfortunately, the textile regex expressions (while they work in context ofpreg_replace_callbackin PHP) fail in Java with the following exception: java.util.regex.PatternSyntaxException: Unclosed character class near index 217 The statement is obvious, the solution is elusive. Here's the raw, mul...
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...
Exception in thread "main" java.util.regex.PatternSyntaxException: Unclosed character class near index 0 [ ^ 出现此错误应该是字符转义出现问题: System.out.println(str.replaceAll("[", "22")); 解决方案:在[之前加上\\ System.out.println(str.replaceAll("\\[", "22"));...
使用str.split("[",15)时,出现Exception in thread "main" java.util.regex.PatternSyntaxException: Unclosed character class near index 0 [
Caused by: java.util.regex.PatternSyntaxException: Unclosed character class near index 28 [_]?([a-zA-Z0-9_]+)=("[^]*"), Another question is, how do i format the regex so i can also match it with this String? MyKey="ID IN [ "ABC" ]", // without the _ _MyKey="ID...
packagecom.company.project.demo020301;importjava.util.regex.Pattern;publicclassClient{publicstaticvoidmain(String[]args){Patternpattern=Pattern.compile("A][bc");System.out.println(pattern);}} 运行结果: Exceptionin thread"main"java.util.regex.PatternSyntaxException:Unclosedcharacterclassnear index4A][bc...
java开发过程中,报错Dangling meta character '*' near index 0,解决办法 2018-09-03 09:02 −1、split方法转化字符串为数组: String[] strPicArr = map.get("hw_pic").toString().split("*"); 报错: java.util.regex.PatternSyntaxException: Dangling meta... ...