Java tutorial
//package com.java2s; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static String getToken(String source) { String tokenString = ""; try { String contentString = source; String regex = "token=(\\d*)"; Pattern pattern = Pattern.compile(regex); Matcher matcher = pattern.matcher(contentString); while (matcher.find()) { String getToken = matcher.group(1); if (getToken != null) { tokenString = getToken; } } } catch (Exception e) { e.printStackTrace(); } return tokenString; } }