How to Match the Ending Parenthesis Using Regex In Java?

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To match the ending parenthesis using regex in Java, you can simply use the regex pattern "\)" (backslash followed by a closing parenthesis). This pattern will match any closing parenthesis in a string. You can use this pattern with the Matcher class in Java to find and extract the ending parenthesis from a given string. Remember to escape the backslash in Java by using another backslash before it in the regex pattern.


How to create a regular expression that targets the closing parenthesis in Java?

To create a regular expression that targets the closing parenthesis in Java, you can use the following pattern:

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String regex = "\\)";


In this regular expression, the backslash \ is used to escape the special meaning of the closing parenthesis ). The \\ represents a single backslash character in Java regex, and the closing parenthesis ) is the character that we want to target.


You can then use this regular expression pattern in Java code to find or replace the closing parenthesis in a string. Here's an example:

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

public class Main {
    public static void main(String[] args) {
        String input = "Hello (World)";
        
        String regex = "\\)";
        
        Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(input);
        
        if (matcher.find()) {
            System.out.println("Closing parenthesis found at index: " + matcher.start());
        }
    }
}


This code snippet will output:

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Closing parenthesis found at index: 12


This shows that the closing parenthesis ) is found at index 12 in the input string "Hello (World)".


How to identify and capture the ending parenthesis using regex in Java?

To identify and capture the ending parenthesis using regex in Java, you can use the following regular expression:

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String input = "Hello (world)";
Pattern pattern = Pattern.compile("\\((.*?)\\)$");
Matcher matcher = pattern.matcher(input);

if (matcher.find()) {
    String endingParenthesis = matcher.group(1);
    System.out.println("Ending parenthesis captured: " + endingParenthesis);
} else {
    System.out.println("No ending parenthesis found.");
}


In this regex pattern:

  • \\( matches the opening parenthesis "("
  • (.*?) captures any characters inside the parentheses as a group
  • \\) matches the closing parenthesis ")"
  • $ matches the end of the input string


The group(1) method is used to retrieve the content captured by the regex within the parentheses. If there is a match found, it will print the captured ending parenthesis. If no match is found, it will print "No ending parenthesis found."


How to specify and match the ending parenthesis character using regex in Java?

To specify and match the ending parenthesis character using regex in Java, you can use the character escape sequence ")" to represent the closing parenthesis character.


For example, if you want to match a string that ends with a closing parenthesis character, you can use the following regex pattern:

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String pattern = ".*\\)$";


In this pattern, the ")" is used to specify the closing parenthesis character. The ".*" at the beginning is used to match any characters that come before the closing parenthesis.


You can then use this pattern with the Matcher class in Java to find matches in a given string. Here's an example of how you can use the pattern:

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import java.util.regex.*;

public class RegexExample {
    public static void main(String[] args) {
        String input = "Hello World)";
        String pattern = ".*\\)$";
        
        Pattern regex = Pattern.compile(pattern);
        Matcher matcher = regex.matcher(input);
        
        if (matcher.matches()) {
            System.out.println("String ends with a closing parenthesis");
        } else {
            System.out.println("String does not end with a closing parenthesis");
        }
    }
}


When you run this code with the input "Hello World)", it will output "String ends with a closing parenthesis" since the input string ends with a closing parenthesis character.


What is the conventional method for extracting the ending parenthesis with regex in Java?

The conventional method for extracting the ending parenthesis with regex in Java is to use the following regular expression pattern:

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String input = "(example)";
Pattern pattern = Pattern.compile("\\)$");
Matcher matcher = pattern.matcher(input);

if (matcher.find()) {
    String extractedParenthesis = matcher.group();
    System.out.println(extractedParenthesis);
}


In this code snippet, the regular expression pattern \\)$ is used to match the ending parenthesis in the input string (example). The Matcher object is then used to find the match and extract the ending parenthesis.

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