Create a string search and replace using regex
import java.util.regex.Pattern; import java.util.regex.Matcher; public class Main { public static void main(String[] args) { String source = "The quick brown fox jumps over the brown lazy dog."; String find = "brown"; String replace = "red"; Pattern pattern = Pattern.compile(find); Matcher matcher = pattern.matcher(source); String output = matcher.replaceAll(replace); System.out.println("Source = " + source); System.out.println("Output = " + output); } }