Java 编程下正则表达式判断字符串是否包含中文

package cn.sunzn.demo;import java.util.regex.Matcher;import java.util.regex.Pattern;public class Demo {    public static void main(String[] args) {        System.out.println(isContainChinese("中国China"));    }    public static boolean isContainChinese(String str) {        Pattern p = Pattern.compile("[\u4e00-\u9fa5]");        Matcher m = p.matcher(str);        if (m.find()) {            return true;        }        return false;    }}