How can I get inside parentheses value in a string?

Question

How can I get inside parentheses value in a string?

String str= "United Arab Emirates Dirham (AED)";

I need only AED text.

Answer 1

I know this was asked over 4 years ago, but for anyone with the same/similar question that lands here (as I did), there is something even simpler than using regex:

String result = StringUtils.substringBetween(str, "(", ")");

In your example, result would be returned as "AED". I would recommend the StringUtils library for various kinds of (relatively simple) string manipulation; it handles things like null inputs automatically, which can be convenient.

Documentation for substringBetween(): https://commons.apache.org/proper/commons-lang/apidocs/org/apache/commons/lang3/StringUtils.html#substringBetween-java.lang.String-java.lang.String-java.lang.String-

There are two other versions of this function, depending on whether the opening and closing delimiters are the same, and whether the delimiter(s) occur(s) in the target string multiple times.

Answer 2

I can suggest two ways:

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Test {
    public static void main(String[] args){
        System.out.println(getParenthesesContent1("United Arab Emirates Dirham (AED)"));
        System.out.println(getParenthesesContent2("United Arab Emirates Dirham (AED)"));
    }

    public static String getParenthesesContent1(String str){
        return str.substring(str.indexOf('(')+1,str.indexOf(')'));
    }

    public static String getParenthesesContent2(String str){
        final Pattern pattern = Pattern.compile("^.*\\((.*)\\).*$");
        final Matcher matcher = pattern.matcher(str);
        if (matcher.matches()){
            return matcher.group(1);
        } else {
            return null;
        }
    }
}

Answer 3

This works...

String str = "United Arab Emirates Dirham (AED)";
String answer = str.substring(str.indexOf("(")+1,str.indexOf(")"));

Answer 4

Using regular expression:

String text = "United Arab Emirates Dirham (AED)";
Pattern pattern = Pattern.compile(".* \\(([A-Z]+)\\)");
Matcher matcher = pattern.matcher(text);
if (matcher.matches()) {
    System.out.println("found: " + matcher.group(1));
}