Remove square brackets from a String using Regular Expressions?

Question

How would I remove all square brackets ("[]") from a given String in Java?

String s = "[abcdefg]";
s = s.replaceAll(regex, "");

What regular expression would be used in this case?

Answer 1

Use this one:

 String s = "[abcdefg]";
 String regex = "\\[|\\]";
 s = s.replaceAll(regex, "");
 System.out.println(s);

Answer 2

你可以用"\\\\[([^\\\\]])\\\\]"类的东西来匹配它（打开brachet，一系列任何不是结束括号的东西（包含在里面()供以后参考），然后关闭括号）然后用()块（组1）内匹配的内容替换整个匹配（组0）