花间一壶酒

摘要：/** * parse double f to num decimals * @param f * @param num the decimal number * @return the format number */ public double decimalNum(double f, int num) { BigDecimal bg = new BigDecimal(f); double f1 = bg.setScale(num, BigDecimal.ROUND_HALF_UP).doubleValue(); return f1; } 阅读全文

摘要：public String getMonday(String date) { if (date == null || date.equals("")) { System.out.println("date is null or empty"); return "0000-00-00 00:00:00"; } SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd"); Date d = null; try { d = forma... 阅读全文