Question

How to match the first word after an expression in a string using RegEx with Java

Answer 1

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

public class MatchFirstWord {
    public static void main(String[] args) {
        String text = "The quick brown fox jumps over the lazy dog.";
        String expression = "fox";

        // Create the regex pattern: match 'expression' followed by whitespace and a word
        Pattern pattern = Pattern.compile(expression + "\\s+(\\w+)");
        Matcher matcher = pattern.matcher(text);

        if (matcher.find()) {
            String firstWord = matcher.group(1);
            System.out.println("The first word after '" + expression + "' is: " + firstWord);
        } else {
            System.out.println("No match found!");
        }
    }
}



/*
run:

The first word after 'fox' is: jumps

*/

 

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