學習心得與技術分享
public static List<String> init(){ return Arrays.asList("abcd", "bcde", "cdef","bcad","cabd","dcba","abcd","abdf"); }
public static String DateToString(Date date){ SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return format.format(date); }
public static Date StringToDate(String dateString){
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
return format.parse(dateString,new ParsePosition(1));
}
public static double DateDiffHour(Date dateStart,Date dateEnd,Integer second,Integer roundN){
long number1 = dateEnd.getTime() - dateStart.getTime();
long number2 = second * 1000;
BigDecimal b1 = new BigDecimal(number1);
BigDecimal b2 = new BigDecimal(number2);
return b1.divide(b2,roundN,BigDecimal.ROUND_HALF_UP).doubleValue();
}
Date start = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date end = new Date();
long diff = end.getTime()-start.getTime();
System.out.println(diff);
private String GetTime(){
SimpleDateFormat timeFormat = new SimpleDateFormat("HH:mm:ss.SSS");
Calendar now = Calendar.getInstance();
timeFormat.setTimeZone(TimeZone.getTimeZone("GMT+8"));
return timeFormat.format(now.getTime());
}