Java tutorial
//package com.java2s; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static boolean isCnEnNumCorrect(final String content) { String rex = "^[\u4e00-\u9fa5a-zA-Z0-9]+$"; Pattern pattern = Pattern.compile(rex); Matcher matcher = pattern.matcher(content); return matcher.matches(); } }