判断是否为数字Util--笔记

public class RegexUtil {    /**     * 判断是否为数字     * @param value value     * @return true     */    public static boolean isNumeric(String value) {        if (TextUtils.isEmpty(value))            return false;        Pattern pattern = Pattern.compile("^(-?\\d+)(\\.\\d+)?$");        Matcher matcher = pattern.matcher(value);        return matcher.find();    }}