Core Java Regular Expression Example

import java.util.regex.*;

import java.util.*;



      public static final String NUMBER_REGEX = "[0-9]+";



      public static List findNumbersIn(String s) {

          List ret;

          Pattern p;

          Matcher m;

          String num;



          ret = new ArrayList();  // starts empty

          p = Pattern.compile(NUMBER_REGEX);

          m = p.matcher(s);

          while(m.find()) {

              num = m.group();

              ret.add(num);

          }

          return ret;

      }