使用正则表达式从较大的字符串中提取被单引号包围的字符串的Java程序

import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class StringExtractor {
   public static void main(String[] args) {
      String input = "This is a 'single quote' enclosed string";
      Pattern pattern = Pattern.compile("'(.*?)'");
      Matcher matcher = pattern.matcher(input);
        
      if (matcher.find()) {
         String extractedString = matcher.group(1);
         System.out.println(extractedString);
      }
   }
}

single quote

import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.ArrayList;
import java.util.List;
public class StringExtractor {    
   public static List<String> extractStringsWithRegex(String input) {
      // This function takes string as input, iterates over to search for regex matches
      // and stores them in a List named matches which is finally returned in the end
      Pattern pattern = Pattern.compile("'(.*?)'");
      Matcher matcher = pattern.matcher(input);
      List<String> matches = new ArrayList<>();
      while (matcher.find()) {
         matches.add(matcher.group(1));
      }
      return matches;
   }   
   public static void main(String[] args) {
      String input = "This is a 'test' string with 'multiple' 'single quote' enclosed 'words'";
      List<String> matches = extractStringsWithRegex(input);
      for (String match : matches) {
         System.out.println(match);
      }
   }
}

test
multiple
single quote
words