Java tutorial
//package com.java2s; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static boolean isWeb(String strWeb) { String strPattern = "(http://|ftp://|https://|www){0,1}[^\u4e00-\u9fa5\\s]*?\\.(com|net|cn|me|tw|fr)[^\u4e00-\u9fa5\\s]*"; Pattern p = Pattern.compile(strPattern); Matcher m = p.matcher(strWeb); return m.matches(); } }