检测字符串中是否包含汉字

public static boolean checkChinese(String sequence) {
    final String format = "[\\u4E00-\\u9FA5\\uF900-\\uFA2D]";
    boolean result = false;
    Pattern pattern = Pattern.compile(format);
    Matcher matcher = pattern.matcher(sequence);
    result = matcher.find();
    return result;
}