Java Programming

Hello Folks,

I have a single string of numbers positive and negative separated by a delimiter. I am trying to convert the negative numbers which are represented by brackets into ones without brakcets e.g. (1.235) to -1.235

Here is what I have in my code
arCols[j].replaceAll("\(", "-");
arCols[j].replaceAll("\)", "");

But that gives a compilation problem as below.

Exception in thread "main" java.lang.Error: Unresolved compilation problem:
Invalid escape sequence (valid ones are \b \t \n \f \r \" \' \\ )

And if I remove the leading slash that tries to escape the character as below

arCols[j].replaceAll("(", "-");
arCols[j].replaceAll(")", "");

I get the following error.

Exception in thread "main" java.util.regex.PatternSyntaxException: Unclosed group near index 1
(

How can I replace the brackets using regular expression search and replace?

Thanks for your help.

Sanjay.