Java tutorial
//package com.java2s; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static boolean isChineseChar(String str) { boolean temp = false; if (str.matches("[\u4e00-\u9fa5]+")) { return true; } Pattern p = Pattern.compile("[\u4e00-\u9fa5]"); Matcher m = p.matcher(str); if (m.find()) { temp = true; } return temp; } }