檢查字符串中是否含有中文(java)

//含有中文返回true,否則返回false

import Java.util.regex.Matcher;
import Java.util.regex.Pattern;

public boolean isChiness(String s)   
{   
    String pattern="[u4e00-u9fa5]+";   
    Pattern p=Pattern.compile(pattern);   
    Matcher result=p.matcher(s);                   
    return result.find();  
}